Best of 2009

TV's Top 20 Most Buzzed-About Moments

Dr. Ross's happy ending, Kris Allen's Idol win, Heather Locklear's return and more moments you couldn't stop talking about

Updated: Tuesday Nov 24, 2009 | 06:00 AM EST By: Aaron Parsley

HEEERE'S CONAN!

After 17 years (that's some 4,000 monologues!), Jay Leno stepped down as the host of NBC's Tonight Show, passing the torch to Conan O'Brien, who delivered his first monologue in June. "At least I know the 'Applause' sign works," he said. "I've timed this moment perfectly."