Available for free (but not free for much longer) this is a hilarious radio show where Ricky Gervais and Stephen Merchant talk with their unusual village idiot friend Karl Pilkington and tease and prod him. Karl's diaries are absolutely phenomenal. It is a bit hard to describe why the show is funny, like a lot of humorous things, you really just have to experience it for yourself.
But for a taste here is a Karl quote: “You'll never see an old person eating a Twix, but they always buy ornaments”. The new shows should be up Feb. 28th on podcast (this is the most highly listened to show on podcast ever – as they will boast all the time), even with a small fee I can't recommend taking a listen enough. It's brilliant.