 On Digital Terrestrial Television and DAB , broadcasters also need to contact the ensemble or multiplex operator of a local or national DAB ensemble or digital terrestrial multiplex to broadcast within a region , subject to a fee payable to the ensemble operator . On Digital Satellite , radio stations need to secure capacity with a transponder operator and an uplink to a satellite . To broadcast on the Sky Digital platform , a broadcaster must also secure an EPG slot allowing viewers to navigate to their channel using the set @-@ top @-@ boxes provided by British Sky Broadcasting . A request for an EPG slot must be done up to nine months in advance . The same procedure applies to secure a slot on the Freesat platform , although stations need to contact Freesat UK Ltd instead of BSkyB . On Digital Cable , broadcasters need to contact a cable supplier for carriage . 
