▁and ▁his ▁team ▁re orient ▁the ▁Gra v it ron ▁to ▁its ▁proper ▁use , ▁the ▁Doctor ▁and ▁his ▁compan ions ▁s lip ▁away . ▁Back ▁in ▁the ▁T ARD IS , ▁they ▁dem aterial ise ▁and ▁then ▁activ ate ▁the ▁rarely ▁used ▁time ▁sc anner ▁to ▁reve al ▁a ▁mon str ous ▁cla w ▁w aving ▁around . ▁ ▁Production ▁The ▁working ▁titles ▁of ▁this ▁story ▁were ▁Cy ber men ▁and ▁The ▁Return ▁of ▁the ▁Cy ber men . ▁ ▁It ▁was ▁commission ed ▁before ▁the ▁last ▁episode ▁of ▁The ▁T enth ▁Planet ▁was ▁broadcast , ▁to ▁take ▁advantage ▁of ▁the ▁strong ▁positive ▁response ▁to ▁the ▁Cy ber men . ▁When ▁Ped ler ▁was ▁commission ed ▁to ▁write ▁a ▁second ▁Cy ber man ▁story , ▁one ▁of ▁the ▁requirements ▁was ▁that ▁the ▁story ▁should ▁have ▁only ▁one ▁large ▁set ▁and ▁a ▁limited ▁number ▁of ▁smaller ▁sets . ▁The ▁first ▁draft ▁of ▁the ▁script ▁was ▁written ▁before ▁it ▁was ▁decided ▁that ▁Fra zer ▁H ines ▁would ▁be ▁a ▁regular ▁cast ▁member . ▁As ▁a ▁result , ▁the ▁character ▁of ▁Jam ie ▁had ▁to ▁be ▁worked ▁into ▁a ▁script ▁that ▁didn ' t ▁have ▁much ▁room ▁for ▁him . ▁So ▁in ▁the ▁first ▁two ▁episodes , ▁Jam ie ▁sp ends ▁much ▁of ▁the ▁time ▁in ▁the ▁sick bay . ▁In ▁the ▁last ▁two ▁episodes , ▁some ▁of ▁Ben ' s ▁dialog ue ▁was ▁given ▁to ▁him . ▁ ▁The ▁first ▁ 3 ▁Epis odes ▁were ▁recorded ▁on ▁success ive ▁S atur days ▁at ▁Doctor