Konata Izumi wrote:
A: Despite junkyards being a weird places, that episode was indeed from a more RTD/Pertwee point of view before entering the TARDIS. After that point they mostly went to complete, new settings instead of just stuff coming at their place like often with Pertwee and RTD. The PoV character thing though, was there too until Leela (?), but that has nothing to do with how mundane the stuff is we're looking at.
B,C: Dunno what those are. Doesn't seem much at all?
D: That sounds like it might have been a common discussion when the episode was made but I don't think slavery's really mundane at all, nor really the thing 7 was getting at.
Nitpicking aside, the show has always been interested in modern society and the contemporary world, has constantly be providing us with the point of view of ordinary people, has persistently shown us the everyday life of British people of all creeds. It's always been part of the formula and in my opinion, denying it is as absurd as it is futile.