Bob Newhart:

Abe Lincoln

Introduction of Tobacco to Civilization

Bill Cosby:

Tonsils

Go Carts

Chicken Heart

Straight No Chaser:

12 Days of Christmas

The Christmas Can-Can

Who Spiked the Eggnog

Just For Fun:

Snoopy's Christmas

Hot Chocolate

Come Out Of The Dumpster

Miss American Pie

Skip the One-Legged Shark Diver

[ No, I can't explain why I included these. It just seemed like a good idea at the time. ]