Doctor Who episode 487: The Pirate Planet – Part Four (21/10/1978)
‘A bit crude but immensely satisfying.’ Being cold about it, this ending isn’t quite as good as the set-up. Partly it’s that the execution isn’t quite snappy enough so some of the repartee doesn’t sizzle as much as it might, and the Mentiads’ destruction of Zanak’s engines looks fairly drippy. Mainly it’s because, having criticised Xanxia’s bafflegab the Doctor spouts a great deal of it himself, and Adams doesn’t quite give the villains the exits they deserve (Xanxia, in particular, literally just fades away).