I've seen Kids in the Hall, SNL, Mad TV, In Living Color, and lot of other sketch comedy show.
The greatest of them all is The Upright Citizens Brigade. It ran for about 2 seasons on Comedy Central.
http://www.uprightcitizens.org
Pure genious.
http://www.uprightcitizens.org/10/im...upercool_s.jpg
http://www.uprightcitizens.org/10/images/redcat_s.jpg