So many! I loved Comedy Nation on BBC2 in the late 90's. It was basically zero budget sketches from up and coming comedians, and whilst there was a lot of rubbish in there, there was also some proper surrealism and utter comedy gold. It had early Peter Kay, Sacha Baron-Cohen, Julian Barrett, Mitchell and Webb, Simon Munnery, Ricky Grover, Kevin Eldon and Julia Davis for starters. There's not much of it available online sadly, I do hope the original tapes still exist at least. Here's one as an example
Sadly I still I can't find the one which had the Sacha Baron-Cohen 'Shvitzen' song in it, which used to send me to another planet of mirth. It's sort of in this video, but is annoyingly narrated, rather than being left to its own devices in full.
Comedy Nation also got me into David Hoyle as the Divine David, which led to an awesome series of six episodes called 'The Divine David Presents'. So, so much good stuff in that. I think all the full episodes are on YouTube, but here are some of my highlights as separate sections.
