I'm a huge Mystery Science Theater 3000 fan (which has been off the air for how many years now? I am the proud owner of ALL the episodes on DVD!), and lately I've become hooked on RiffTrax and Cinematic Titanic (well, there are worse things to be addicted to). Not everyone gets this kind of comedy but it never fails to give me a laugh!
The other day I came across another funny guy called Josh Way who produces stuff in a similar style to MST3K. He has some cool videos on his website, has DVDs for sale and you can find a lot of his stuff on YouTube.
Very funny guy! Check him out if you're after a laugh!