Doctor Who episode 668: Delta and the Bannermen – Part One (2/11/1987)
‘I don’t just kill for money. It’s also something I enjoy.’ This is different: a historical set within living memory, practically within the show’s own lifespan. And not for the last time in the McCoy years. Again, this all unfolds with a pleasing sense of fun even when some of the subject matter is grim (the corpse strewn battlefield at the start includes a grisly moment when one of the bodies is blown up). The holiday camp setting isn’t unique (The Macra Terror and The Leisure Hive), but it’s a sensible choice – a microcosm of 1950s Britain. Alien tourists visiting Earth’s history for larks is such an obvious idea you wonder why Graham Williams didn’t get there first.