Mr. Short Term Memory.

Tom was a straight man in it, but Mr. Belvedere Fan Club is just insanely hilarious. I still use the name 'Brocktoon' whenever pertinent.
Sabra Price is Right.
The Five Timers Club.
Mr. Short Term Memory on Game Beaters (all of them are great, but this is the best one.)

Mr. Short-Term Memory was brilliant, and so was the skit where the family all had to test how bad certain things were like the milk was sour, the stair to the basement were broken, etc.
I also liked the two lonely guys (Lovitz & Hanks)
"Here they come"
"and there they go."

Mr. Short-Term Memory is an absolute classic.
But, this is just hysterical to me, especially if you've seen Big.
http://www.nbc.com/saturday-night-live/video/big-outtakes/n9704