Is it possible to go to the Drew Carey's improvaganza show at the MGM grand or is it only for tv?

At the beginning of every improvaganza show, it states that it was at the MGM grand in Las Vegas. Now I was wondering if I was to go to Las Vegas would it be possible to get a ticket to go to the show, or does it not even exist and was filmed ahead of time. I have searched the internet and been unable to find a decent answer, probably as the show is relatively new.