http://www.youtube.com/watch?v=60nf5ZNBs9Y&t=5m30s
This is the one. Just skip the annoying parts about 2 guys getting high.
The comment section for this video is overrun with people saying shit like:
Megyn Kelly talked about blackface and was fired. Sarah Silverman DOES blackface and here career thrives. The difference? Kelly is politically on the right and Silverman is politically on the left.