Can you imagine television without Ellen DeGeneres? We can’t either. Her eponymous show has been a daytime staple since 2003, garnering countless fans and dozens of Emmys. And now we have a major milestone to celebrate: Ellen’s 15th season, debuting today.

Relive some of the hilarious highlights from the last 14 seasons in the clip below. Then tune into the season premiere this afternoon featuring Hollywood heavyweights Will Ferrell and Mark Wahlberg, who will fill us in on their latest film. Visit ellentv.com for local listings.