After a desperate quest for the ultimate munchies in the "Harold & Kumar" franchise, Kal Penn gave up White Castle for the White House. Now he's back in Hollywood to host a new reality show on Discovery, "The Big Brain Theory: Pure Genius." The "House, M.D." alum chatted with Wonderwall via Twitter about his new gig, his experience working on Capitol Hill and more! Keep reading for the full Twit-chat -- and don't forget to follow @kalpenn and @WonderwallMSN on Twitter!