I will echo the recommendation. Though some of the puzzles do require local knowledge, there are quite a few based on the US.

Though not really applicable to LLM, the last rapid fire round (missing vowels, work out what the words/phrase without any vowels, on the buzzer) is a favourite.

Currently Monday evening on BBC 2 is Mastermind, Only Connect and then University Challenge. This excellent sequence will stretch pretty much anyone's knowledge.