Watch out for obelisks, chessboards and mind probes - it's The Five Doctors!

Harry fiddles with a knob, Sarah passes out and the Doctor gets in a sweat on The Ark in Space.

Adric trips over nothing and Richard Mace runs off for a squirter. Don't miss the lads' take on The Visitation.

The lads get their minds fudged by The Mind Robber.

We're back with some more archive "classics" this month, starting with a video nasty which is a searing indictment of video nasties, Vengeance on Varos.