I've listened to all of the podcasts over the years. The only ones that stand out are the Ray Parlour and Graham stack shows from the magic sponge. Very funny and clear indication of what you could get away with in the 90's.One thing i think we can be sure of from that is that he knows how to swear, snowflake carol.
I hadn't listened to The Magic Sponge before but gave some of the others a go too. Some are decent but some are unlistenable (is that a word?) with everyone talking at the same time and high pitched giggling. The John Sitton one is quite funny although probably for all of the wrong reasons.