Episode 85 - Singularity

This week we're joining the Fifth Doctor and Turlough - unusual pairing, that - as they venture into Moscow, and to the very ends of the universe itself, in Singularity. How much can be made of the unusual Moscow setting? What other end-of-the-universe story does this remind everyone of now, even though this came first? And given how unusual the pairing is, how do the Fifth Doctor and Turlough fare? Dig out a big wooly hat, brace for temporal paradox and let's find out!