Former writer for The Simpsons and Saturday Night Live, Conan O'Brien took over the 12:30 time slot after The Tonight Show when David Letterman left NBC in 1993. Popular sketches include "In the Year 2000," "If They Mated," and "Clutch Cargo" (in which photos of various politicians and celebrities appear with someone else's lips and voice doing the talking). "Triumph the Insult Comic Dog," "Pimpbot 5000," and "The Masturbating Bear" have also gained loyal followings.