My latest discovery is "Stop Podcasting Yourself". It's an excellent podcast where two Canadian comedians just chat about stuff, usually with a guest on who's either a comedian or generally associated with the entertainment industry.
Get to Know Us - where they chat about random stuff
Overheards - where they talk about the funny stuff they've overheard during the week, thy also get listener contributions here.
Celebrity Birthdays - each week they change around the topic for this, last week it was Celebrity Blurt-days, where they had to blurt out the first thing that came to mind upon hearing the name, another recent one was Celebrity Bulk-days, where they had to guess what the celebrity in question usually buys in bulk.
Really fun to listen to, would definitely recommend.