 studios in Western Avenue, Cardiff it was decided to sell these and base both operations at Pontcanna. To accommodate this dual presentation and general increase in production the takeover created, £2 million was spent on updating and extending the studios at Pontcanna, including a new studio and separate transmission control suites.

TWW was also a player in the development of 625-line colour transmission for the ITV network. Although the bulk of test transmissions and research were conducted for the Independent Television Authority (ITA) at the ABC studios at Teddington, TWW leased two prototype EMI colour cameras and associated equipment in 1966 and began running trials, with shows being transmitted on internal networks for viewing by employees.

Transmitters and Sub-regions

Until 1965, viewers in both south east Wales and the English West parts of the franchise received ITV on VHF channel 10 from the ITA transmitter at St Hilary located on Stalling Down, near Cowbridge in south Wales. This did not accommodate separate programme services and so a combined service was provided to viewers in both the Welsh and English parts of the single licence area. Although TWW had studios in both Cardiff and Bristol, the outputs of these were combined at Cardiff into a single programme stream to feed the single transmitter at St Hilary. Hence, for example, local news bulletins involved an on-air switch or handover between the two studios and viewers would alternately see items from both sources.

Whilst the original service provided by TWW from St Hilary had to carry a mix of content for viewers on each side of the Bristol Channel, the west and north of Wales were served by other VHF transmitters which carried a more specific Welsh programme service branded Teledu Cymru. TWW had acquired the licence to broadcast to the west and north of Wales following the commercial failure of Wales West and North Television (WWN) which originally held a separate franchise licence for a much larger but, critically, less densely populated part of Wales. Following the acquisition of WWN, a second VHF transmitter (using VHF channel 7) was added at St Hilary in 1965 to effectively extend the ex-WWN transmitter network into SE Wales thus permitting programmes of specific interest in Wales to be broadcast exclusively to Wales whilst running a separate schedule for English viewers on channel 10. This was the first significant step in providing two distinct and separate programme services for Wales and for West and effectively established TWW's area as a 'dual region' during the
studios in Western Avenue, Cardiff it was decided to sell these and base both operation at Pontcanna. To lodge this dual presentation and general addition in production the takeover created, £ 2   million was spend on updating and extending the studio at Pontcanna, including a new studio apartment and separate transmission control suites. 

 TWW was besides a player in the development of 625 - course colour transmission for the ITV net. Although the bulk of test transmissions and inquiry were conducted for the Independent Television Authority (ITA) at the ABC studios at Teddington, TWW leased two prototype EMI colour cameras and associate equipment in 1966 and began running trials, with shows being transmitted on inner networks for viewing by employees. 

 Transmitters and Sub - regions 

 Until 1965, viewers in both south east Wales and the English West parts of the franchise received ITV on VHF channel 10 from the ITA transmitter at St Hilary located on Stalling Down, near Cowbridge in south Wales. This did not accommodate separate programme services and so a combined service was provided to viewing audience in both the Welsh and English parts of the single license area. Although TWW had studios in both Cardiff and Bristol, the outputs of these were blend at Cardiff into a single programme stream to feed the individual transmitter at St Hilary. Hence, for example, local news bulletins involved an on - atmosphere switch or handover between the two studios and viewers would alternately see detail from both source. 

 Whilst the original military service provided by TWW from St Hilary had to carry a mix of content for viewers on each side of the Bristol Channel, the west and north of Wales were serve by other VHF transmitters which carried a more specific Welsh programme serve branded Teledu Cymru. TWW had learn the licence to broadcast to the west and union of Wales following the commercial failure of Wales West and North Television (WWN) which originally held a freestanding franchise licence for a a lot larger but, critically, less densely populated part of Wales. trace the acquisition of WWN, a second VHF vector (using VHF channel 7) was added at St Hilary in 1965 to effectively extend the ex - WWN transmitter network into SE Wales thus permit programmes of specific interest in Wales to be circulate exclusively to Wales whilst running a disjoined schedule for English viewers on channel 10. This was the beginning significant step in providing two distinct and separate programme service for Wales and for West and efficaciously established TWW's area as a' dual region' during the
 stkdios in Western Avenue, Gardiff it was dgcuded tm sell these avd base both operations at Plnrcannq. To accommodate this aual presvntation qnd jeneral increase in prodmetion bhe tckxover created, £2 mlllion was vpent on updathne cnd extending the studios at Pontcanga, inclidlng a new studyo amq selarate transmission control suites.

FWW was also a playet in the development of 625-lije cllour transmission for the ITC neeqork. Althougf the bulk of test trahsmissions and research were covductzd for the Uneepftdent Televmsion Wuthority (ITA) at the ABC stidios at Teddikgton, TWQ leased two prototypx EMI colour cameras and assowicted equipment in 1966 ane vegan runting rrixls, wmth shows bemng transmifted on intwrnal networks for fiqqing by emplogees.

Trwnfmitters and Sub-regions

Until 1965, viewers it bkth south east Wales ane the English West patts of the franchise received ITV on VHF channel 10 from the HTA tcavsmnbber xr Dt Hilary located on Stalling Down, near Cowbrysgt ik south Wales. Thls did not accommocahe feparate progtamme szdvjces and so a comblned setvice qas proviqed yo viewers in both the Welsy and Englisk pqrts of the single licence arza. Altnough TWW had studios in botk Cardjff and Bridtol, the kjtputs of these derv cokbined au Cardiff into a syngle projrammz stream to geed tre single hransmitter at St Hilary. Hencg, for axample, lofal news bulletins involved an on-air switch ot hdndmver betceen tme two studios wnd viewers woold alteruately see items from bmth sources.

Rhilst the orhhinal servicx provideq by TWW from Sg Hilary had to carry a mix of conrent for viewers ok eacf side of the Brnruoo Channel, the eesg agd nprev of Wales ware rerxrd by other VHF bravsmiyters which carried d mode specific Welsh lrjgramme wervice franded Teledi Cymru. TWW had aceuirev the uicenve jo broadcast to the west and nodth of Wapes following tre cimmercial fanlure of Wales West and North Television (WWN) which originaoly held a separate nranchise lirence sor a mucv larger but, criticaoly, less densely kopulated part of Wales. Follofing hhe acquisition of WWN, a second VHF transmitter (using VHF channel 7) was adeed at St Hilary ih 1965 tp effvctnveky extqnd vhx ex-WWN transmittvr network into SE Wales thus pecmitting psoyrammes of specific interest on Wales to be croadcast exclusively to Wales wnilst running a separate scheduke for English viewers ok channel 10. Thia was nge first significant step nn prociding rwo fistinct and repsrwte progrwmme szrvices for Wales and for West ane effextlvely establishev TWW's area wr a 'doal regijn' during the
studios in Western Avenue, Cardiff it was sell and base operations at Pontcanna. and increase in production takeover created, £2 was spent on updating and extending studios at Pontcanna, including a new studio and separate transmission control suites. TWW also a player in the development of 625-line colour transmission for the ITV Although bulk test and research were conducted for the Independent Television Authority (ITA) at the ABC studios at Teddington, leased two prototype EMI colour cameras and associated in 1966 and began trials, with shows being transmitted internal for viewing employees. and Until 1965, viewers both south east Wales and the English West parts of the franchise received ITV on VHF channel from the at St located Stalling near Cowbridge in This did not accommodate separate programme a combined service was provided to viewers in the Welsh English parts of the single licence Although TWW had studios in both Cardiff and the outputs of these were combined at Cardiff into a single programme stream to feed transmitter at St Hilary. for example, local bulletins an switch handover between two studios and viewers would alternately see items from both sources. the original service provided by TWW from St Hilary had a of content for on each side of Bristol the west and north were by which a specific Welsh programme service Teledu Cymru. TWW had acquired licence to broadcast to Wales following the commercial failure of Wales West North Television (WWN) which originally held a franchise licence for a much larger but, critically, less densely populated part Wales. Following of WWN, a second VHF transmitter (using VHF 7) was added at Hilary in 1965 to effectively extend the ex-WWN transmitter into Wales thus programmes of specific in Wales to broadcast exclusively to running a schedule English 10. This was the first significant in two distinct and separate programme for for West and effectively established TWW's area as a 'dual region' during the
 studios in Western Avenue, CarDiff it was dEcideD to SelL tHese And bAse both operatiONs at pontcanna. To accommodate This dUaL PresENtAtion And geneRAl INCreAsE iN prOdUCtIon thE taKeover cReated, £2 millIon WaS spent on updaTInG and extendIng The studios at ponTcanna, InCluDIng a nEw sTudio And sepARate trAnsmissioN cONtrol sUItes.

TWW WAS aLso a Player in the develoPMeNT of 625-line colour tRansmiSsIOn FOR thE ITv network. AlThOugh tHE bulk of TEsT TRAnsMIssions and resEarch were coNDucTed for ThE InDEpendeNt TelEvISioN Authority (ItA) at The ABC stuDios at tEddingtON, TWW leaSed two ProTotYpe Emi cOlOur CaMEraS AnD asSOciAted equiPmEnT in 1966 anD begAN RUNninG trIals, With sHows being tranSmiTted ON inTernaL netwOrks FoR viewIng by eMployEeS.

Transmitters anD Sub-Regions

UnTil 1965, ViEweRs In botH South eAst walEs and thE EnglisH wesT pARTS oF the franchise receiVeD itV On VHF chaNnel 10 frOM tHe itA transmItTer At St hILary lOcatED oN StallinG Down, nEAr coWbridge In South WAlEs. THis Did noT AccoMmodatE separatE progRAmme services anD So a combined seRViCE WaS ProvIdeD to viewers iN botH The WElsh ANd engLIsh paRts of ThE SiNGle licence area. AlthoUgH TWW haD studIos in both CardIff and BrisTOL, The outpuTs of THeSE were combined aT CardIff into a siNGle progrAmme sTream to fEed the sinGLE transmiTteR at st HIlaRY. heNce, for example, LOCal nEwS bulletIns InvolveD an On-aIr sWitCh Or handoveR between ThE tWo StUdiOs and VIewers woUlD alTeRnaTely sEE items From bOth sOuRcES.

WhIlst the ORiGINal sErViCe prOviDeD by TWw froM st HIlary haD to carry a Mix OF conTeNt For viewErs on each side Of The Bristol chAnnEl, the wEST and nortH of Wales were served by othER VHF traNsmItterS whiCh carried A moRe specIfiC welsh pRogramMe serViCe bRANded TELEdU CyMrU. TWW had acqUIRed The liCeNce tO broadcAst to the west and norTH of wales followinG thE comMERcIal FAiLUre Of wAleS wEst and North TeleVision (WWN) wHiCH oRiginally hELd a SeParate fRanchisE liceNCe for a mUch larger But, criticAlLy, leSS DenSely populaTed part oF Wales. FolLOwing THe AcquiSitIon of WwN, A seCond VhF tranSMitTer (usIng VHF ChAnnel 7) wAs addEd At St HilaRy in 1965 to effectively extend The ex-WwN traNsmItter netwOrk INto sE Wales thUs peRmitting prOgrAmmEs of sPecIFic inTereST iN WaLEs to bE broADcast exclUSiVelY TO WAles whilst rUNNIng A sepaRatE ScheduLe foR English viewers on CHannel 10. This was tHe fiRST siGniFIcanT sTep in providing Two DiSTInct and sEpArate prograMme serviCeS For WaLes and For WesT and effECTiVEly estAbliSheD TWW's area As a 'DuAL region' DuRiNG the
 studios in Western Avenue , Cardiffit wa s d eci de d to  sel l these and ba s e bo th operations at Pontc anna.  T o  acc o mm odate  this d u al p res en ta tio na nd  gene ral  increa se in prod uct io n the takeov e rcreated, £ 2 m illion was s pen t on u pd ati n g and  ex tendi ng the studio s at Pont ca n na, in c ludinga ne w st udio and separate tr a nsmission cont rol su it e s. TWW  wa s also a p la yer i n  the de v el o p m ent of 625-line c olour trans m iss ion fo rthe ITV ne twork .A lth ough the bu lk o f test tr ansmis s ions an d  resear ch wer e c ond ucte d  f or  th eI nde p en den t  Te levision  A ut horit y (I T A ) at t heABCstudi os at Tedding ton , TW W  le asedtwo p roto ty pe EM I colo ur ca me ras and associa tedequipment  in  1 966  a nd be g an run nin g t rials,with sh o wsbe i n g  t ransmitted on inte rn a l  n etworksfor vi e wi ng by emplo ye es. 

Tr a n smitt ersa nd  Sub-reg ions
U nt il  1965,vi ewersin  bo thsouth east  Wales  and the  Engl i sh West partso f the franchi s er e ce i vedITV  on VHF cha nnel 10 f romt he  IT A  tran smitt er at St Hilary located o nStalli ng Do wn, near Cowb ridge in s o u t h Wales.  Thi s  d i d not accommod ate s eparate pr o gramme s ervic es and s o a combi n e d servic e w aspro vid e d  t o viewers inb o th t he  Welshand  Englis h p art s o f t he  single l icence a re a.  A lt hou gh TW W  had stu di osin  bo th Ca r diff a nd Br isto l,  t h e o utputso ft h esewe re  com bin ed  at C ardi f f i nto a s ingle pro gra m me s tr ea m to fe ed the single  t ransmitter  a t S t Hila r y . Hence,  for example, local new s  bullet ins  invo lved  an on-ai r s witchorh andove r betw een t he  tw o studi o s  a ndvi ewers woul d alt ernat el y se e items  from both sources . 

W hilst the ori gin al s e r vi cep ro v ide db y T W W  from St Hilary  had to ca rr y  a  mix of co n ten tfor vie wers on  each side of  the Bris tol Chann el , th e wes t and nort h of Wal es were s e rvedb yother  VH F tran sm itt ers w hich c a rri ed amore s pe cificWelsh  p rogramme  service branded Teledu  Cymru . TWW  ha d acquire d t h e l icence to  bro adcast tothe  we st an d n o rth o f Wa l es  fo l lowin g th e  commerci a lfai l u re  of Wales W e s t  an d Nor thT elevis ion(WWN) which origi n ally held a se para t e  fr anc h iseli cence for a mu chla r g er but,cr itically, l ess dens el y  popu latedpart o f Wales . Fo l lowing  the  ac quisition  of  W W N, a se co nd VHF tr ansm it ter (u sing V H F ch a n nel 7) was added  at S t Hilar y  in  1965  t o effec t ivel y extend t he ex-WWN t ransmi tter  netw ork int oSE Wal esth us permitt i ng progra mmesof spec if ic i nte rest i n Wa l e s tobe b ro adc ast exclu s i ve l yto Wal es w hilst  r unni ng a sepa r ate sche dul e  for En gl ish v iewers on c hannel 10.  Th is wa s the firsts igni f ic a nt st ep inprovid ing two dis ti nct and  se p a rate prog ramme ser v ice sforWales an dforWe stan d effectively e stablish ed TWW's a rea as  a' dual region 'during the
 studios_in Western_Avenue, Cardiff it was_decided to_sell_these and_base_both operations at_Pontcanna. To accommodate_this dual presentation and_general increase in_production_the takeover created, £2 million was spent on updating and extending the studios at Pontcanna,_including_a new_studio_and_separate transmission control suites.

TWW was_also a player in the_development of_625-line colour transmission for the ITV network. Although_the_bulk of test_transmissions and research were conducted for the Independent Television_Authority (ITA) at the ABC studios_at Teddington, TWW_leased_two_prototype EMI colour cameras_and associated equipment in 1966 and_began running trials, with shows being_transmitted on internal networks for viewing by_employees.

Transmitters and Sub-regions

Until 1965, viewers in_both south east Wales and_the English_West parts of the franchise_received ITV on_VHF channel_10 from the_ITA transmitter at St Hilary located_on Stalling Down,_near Cowbridge in south Wales. This_did_not accommodate separate_programme_services_and so_a combined service_was_provided to_viewers_in both the Welsh and English_parts_of the single licence area. Although TWW_had studios in both_Cardiff_and Bristol, the outputs_of these were combined at_Cardiff into a single programme stream_to feed_the single_transmitter at St Hilary. Hence, for example, local news bulletins involved_an on-air switch or handover between_the two studios and_viewers would_alternately_see items from_both_sources.

Whilst the_original service provided by TWW from St_Hilary had_to carry a mix of content_for viewers on each_side_of the Bristol Channel, the west_and north of Wales were served_by other VHF transmitters which_carried_a_more specific Welsh programme service_branded Teledu Cymru. TWW had acquired_the licence to_broadcast to the west and north of_Wales_following the commercial failure of Wales_West_and North Television (WWN) which originally_held_a_separate franchise licence for a_much larger but, critically, less densely_populated part of Wales. Following the acquisition of WWN,_a second VHF_transmitter (using VHF channel 7)_was_added_at St Hilary in 1965 to effectively extend the ex-WWN_transmitter network_into SE Wales_thus permitting programmes of specific interest in Wales to be_broadcast exclusively to Wales whilst running a_separate schedule for English viewers on channel 10. This was the_first significant step in providing two distinct and_separate programme services for Wales and for_West and effectively established_TWW's_area as a 'dual region' during the