Cliffhanger: Steven and Vicki must solve a riddle:
One, two, away they flew…
"Soon thereafter, however, a major problem arose. One of the central elements of Hayles' storyline -- an aspect on which Tosh and Wiles were both quite keen -- was the appearance of characters named George and Margaret. These were drawn from a Thirties play entitled George And Margaret by Gerald Savory -- recently appointed Head of Serials for the BBC -- the gimmick of which was that although the entire story revolved around the imminent arrival of the eponymous characters, the play ended just as they were about to appear. Hayles thought it would be amusing to have George and Margaret finally seen as pawns of the Toymaker who would play various games against Steven and Dodo.
Unfortunately, less than a month before the start of production on The Celestial Toymaker, Savory withdrew his permission for George and Margaret to appear, despite the fact that Campbell Singer and Carmen Silvera had already been cast in the roles. With Hayles still unavailable, new story editor Gerry Davis was forced to make major changes to the scripts. In so doing, he replaced George and Margaret with various other pairs of characters who could be played by Singer and Silvera (the clowns Joey and Clara, the King and Queen of Hearts, and Sergeant Rugg and Mrs Wiggs)."
Yes, the CD liner notes mention that the scripts for "The Celestial Toymaker" were extensively rewritten, for this and other reasons. The liner notes also say, "To tie in with episode one's transmission, Radio Times ran a piece entitled 'Doctor Who Plays the Trilogic Game', in which the rules of the game were laid out.
More here: http://tardis.wikia.com/wiki/Trilogic_game
Cyril was a thinly-veiled gag on long-time British humor character Billy Bunter.
"Bob has dibs on leading that discussion."
I'm eager to see "The Gunfighters" again, if only for proof that the British can butcher American accents as badly as Americans can butcher British ones.
Watched "The Final Test" again last night. Not much to add except that apparently, it was originally planned to replace Hartnell during this episode - when the Doctor became visible again, he would have been played by whoever they might have chosen to replace him at that time. In the end, they deicded to keep him on for awhile longer.