Friday 7pm, BBC One Ade Adepitan, Mel Giedroyc, Rochelle Humes, Vernon Kay, Chris Ramsey and Lenny Rush present the annual fundraiser that brings an evening of fun and games while raising money for good causes. Highlights include a special performance from Strictly Come Dancing as the professionals are joined by “a global superstar”, an exclusive preview of the Doctor Who Christmas Special, Graham Norton’s Red Chair with a twist, and Paddy McGuinness revealing the final total raised by his Radio 2 Ultra Endurance Cycle Challenge. All that and there’s also “an important pitch in Dragons’ Den ” and “a very special CBeebies Bedtime Story”.

7.30pm, Channel 4 As cocaine production surges in Latin America, authorities in Spain are increasingly on the lookout for small so-called “narco-subs” – home-made contraptions, each capable of carrying tonnes of cocaine across the Atlantic to Europe. Guillermo Galdos reports from Galicia.

8pm, BBC Two Winter? It’s surely still autumn, but never mind because it means Monty Don and the team haven’t entirely gone into hibernation. First up, Carol Klein visits a garden in Somerset filled with some of the best shrubs that offer both flowers and scent in the colder months. And Nick Bailey explores a garden that looks beautifully wild, but is meticulously designed.

8pm, Channel 4 The latest quintet of cute and nimble-witted young introverts (not) continue to prove that the format is pretty much bullet-proof and that you do.