This Week in USA
The Ribos Operation: Movie Format
(incorporating: Part One / Part Two / Part Three / Part Four)
11:00pm CST (05:00 GMT) < > « »
(actually broadcast at 23:20:00)
WTTW 11 Chicago
Featuring: Tom Baker, Mary Tamm, Iain Cuthbertson, Cyril Luckham
The Guardian of Time gives the Doctor a difficult task, and a new assistant. Together they must search for the six segments of the Key to Time, to prevent the Universe from being plunged into eternal chaos.
On their mission, the Doctor and Romana travel to the planet Ribos where the first segment of the key is protected by the monstrous Shrivenzale.
Synopsis Source: Doctor Who Guide
Broadcast notes:
Delayed from 11pm to 11:20pm by pledge drive.
Intro: The White Guardian of Time is going to give The Doctor an assignment of such difficulty that The Guardian will feel constrained to provide an extraordinary assistant. Thus we will meet tonight on WTTW, Chicago, a newly graduated female Time Lord with a name so long that only Marty Robinson could pronounce it.
Outro: Next week, in search of the second segment of the key to time, The Doctor, Romana and K-9 set their course for the planet Calufrax. But when they arrive where Calufrax should be they find instead the planet Zanak, which brings to mind the old Gallifreyan saying, "when Calufrax is Zanak, check your TARDIS." [source: ChicagoEpguides]