Drew Carey's Improv-A-Ganza

You can call it "Whose Line Is It Anyway? Redux" if you want but GSN has chosen to call it "Drew Carey's Improv-A-Ganza. " That's the name of the network's improvisational comedy show, filmed at the MGM Grand in Las Vegas, featuring Carey and a number of "Whose Line" alumni, including Ryan Stiles, Colin Mochrie and Greg Proops. Improv comedy fans should be familiar with the format -- the comics participate in games and sketches in which they must make everything up on the spot after being given a scenario by the audience. …