DW radio parody first broadcast 9 days after Slipback

The Daleks get ecology towards the end of this episode of "The Million Pound Radio Show", featuring a joke later recycled for 'Old Harry's Game'.

I'm not awfully sure what, if anything, this tells us about people's views of the show during the temporary Colin Baker interregnum of 1985, except that some people remembered Sarah Jane Smith and some people remembered the Ice Warriors.

Anyway, for a domestic sitcom featuring Daleks, this is much more amusing than I expected.