On March 15, 2004, Game Show Network began using the abbreviation "GSN" online (but kept the words Game Show Network legally) and introduced the tagline "The Network for Games." A key acquisition for the network was the ABC game show "Who Wants to Be a Millionaire". The show proved to be a ratings hit for GSN and anchored its prime time programming for several years. GSN began expanding its programming to include reality television games and various competition-based programs. The network introduced non-traditional originals such as "World Series of Blackjack", "Extreme Dodgeball", and "High Stakes Poker". GSN would also air reruns of reality competitions such as "The Mole" and "Spy TV". Along with its new format, GSN would continue to produce traditional game shows, including new seasons of "Lingo" and a revival of "Chain Reaction".