 Can you believe this? Who Wants to Be a Millionaire is celebrating its 25th anniversary tonight on ABC. WTOP's Jason Fraley previews the game show's big return to primetime. It's hard to believe it's been 25 years since Who Wants to Be a Millionaire premiered on American television on August 16, 1999, hosted by the late Great Regis Philbin. Hi, Dad. I just wanted to let you know that I'm going to win the million dollars. He's won a million dollars!