Before I knew Statler and Waldorf were hotels, I knew them as the two old codgers on The Muppet Show. As a kid I loved them for their "Ahhhh-ha-ha-ha-ha" laughs; when I got older, I loved them for their smart aleck heckling. Never was it greater than when they tore Milton Berle a new one.
Anyway, you'll remember that every show came to a close with one final zinger from the two of them. Here's five and a half minutes of them.