During the kitchen scene with Harold and the doctor, a microphone can be seen for several seconds
This was one of a number of episodes which featured the Steptoe's playing a game at the start. Others were "Men of Property" (Monopoly) "Loathe Story" (Badminton) and "Pot Black" where the whole episode was based around a game of Snooker.
This episode features the appearence of character Charlie Miller, cockney rouge, con man, who Albert refers to in a previous episode, "The Colour Problem".
Harold: What was the name of that shop you took that other great find of yours to?
Albert: Oh, shut up.
Harold: Christopher Columbus' logbook in his own handwriting.
Albert: There's no need to bring that up.
Harold: It would have been worth a few quid if it hadn't been written in English.
Martin, one of Harold's poker playing "friends" was played by Dudley Foster, who later also played Mr. Stonelake - Labour Party Agent- in "My Old Man's a Tory in 1965, series 4.
The little cuboard under the stairs was refered to again in a later episode, "Pot Black" in 1970. This after Harold threatened to turn Alberts bedroom into a snooker room!