I was checking out National Lampoon's Christmas Vacation on IMDB and found this in the trivia section:
I really always figured that was a gag that dated back waaaaaaaaaaay before Chevy Chase. Am I wrong?
After Clark Griswold (Chevy Chase) unsuccessfully attempts to demonstrate his handiwork with the house Christmas lights to his family, he asks his son, Rusty (Johnny Galecki), to help him check all the light bulbs again. Rusty looks at his bare wrist, pretending to have a watch, and excuses himself. Looking at a bare wrist and pretending to have a watch is one of Chevy Chase's trademark gags.
I really always figured that was a gag that dated back waaaaaaaaaaay before Chevy Chase. Am I wrong?