WAIT TILL THE SUN SHINES, BELLY!
I swear, this sketch is the one that taught us half the charades rules, with the fingers on your arm for syllables and the grabbing your ear for sounds like and (apparently, though we never played this) the two fingers on your chest for proper name.
"Carol Burnett" is on DVD, which is awesome, considering I loved it so much as a kid I'd hold a tape recorder up to the TV and get noisy, scatchy little copies of it to listen to later.
Did this sketch teach you charades rules? What was your favorite Carol Burnett sketch? ("Went With the Wind" also has to be up there for me.)