Who Wants to Be a Millionaire? 10th Anniversary Primetime Celebration

Episode 1 (1x1)

Air date: Aug 09, 2009

The series returns to prime time, marking the 10th anniversary of its debut, with changes to the show including time limits on the questions; replacing the 50/50 lifeline with a "double dip" where the contestant can offer two different answers; and an additional "ask the expert" lifeline with a guest celebrity expert. Also, a celebrity appears on each episode to answer a single question to win $50,000 for charity.