Any recording speed is fine. Commercials are no problem, even desired if they are pre-1993 commercials or have early N@N/TVL commercials. Edited or unedited, doesn't matter.

Sitcoms:
Green Acres
Petticoat Junction
Mork & Mindy
My Favorite Martian
Here's Lucy
Brady Brides, The
Welcome Back, Kotter
Happy Days (from 1977 and on)
Monkees, The
Mr. Ed

Cartoons:
Any Toons based on TV shows (Happy Days, Jeannie, Gilligan's Planet ST:TAS, etc.) or Video Games (Sonic (except the one on Toon Disney), Mario, etc.)

Variety:
Carol Burnett
Red Skelton
Laugh-In
America's Funniest Home Videos (w/ Bob Saget)
Bloopers and Practical Jokes
Hee-Haw
Muppet Show, The

I have all the episodes of Green Acres available. Contact me if you're interested.

I have 50 episodes of the muppet show - only on PAL video though!!! :p