 This is a week that who wants to be a millionaire comes back to primetime. It's had a sort of an off and on history, but it's marking its 25th anniversary this week with the show on Wednesday. It takes you back, if you have a long TV memory, to when it first hit the air in 1999, stripped across every night with Regis Philbin as host. It was a sensation. I think it really sparked the trend of putting game shows back in primetime network television.