Erik101 saidJustin Timberlake in the Single Ladies video with Beyonce.
ya that was hella funny.
In the second classic age I would have to say the commercial for "happy fun ball"
Also Eddie murphy becoming a white guy.http://www.snotr.com/video/422/Eddie_Murphy_goes_undercover
The baby/faerie sketch with matthew broderick and phil hartman 10/18.1988
And coneheads in the first classic period.
also: most of the Samburg music videos (dick in a box etc), celebrity jeopardy (sean connery), the dangerous kids toys in the 70's (bag of glass!), tim kazurinski on the new with the cuecards, lots.
The ambiguously gay duo.