11 O'Clock Comics is my favourite podcast.
I dip into a few others when I get time but I listen to this religiously and I've been doing so for about, I dunno, maybe 5 or 6 years,
It might seem bizarre but I feel these 3 guys (used to be 4, but the big, dour, resident hipster left the show about a year ago (thankfully, because he was wearing me down, as was his taste in bland American soft rock) are part of my life now, I'm so used to their voices at least once a week.
It's funny, they have amazing rapport, they really analyse stuff and when they are critical I'm often amazed at the depth they go into to explain why the enjoyed something or not, they cover a broad range of stuff, come from different backgrounds and just generally sound like people I'd like to hang out with myself.
It's great, you should check it out.
Also the 2000ad podcast is fab and Starburst radio podcast is very good also for cult to and movies etc.