On season 2 of The Big Bang Theory, Leonard gets a girl. So does Sheldon. Howard drives the Mars Rover into a ditch. Raj woos a terminator. Gorgeous girl-next-door Penny falls under the spell of Age of Conan. Also on DVD: CSI: Miami season 7, Fame seasons 1 and 2, Grey's Anatomy season 5, It's Always Sunny in Philadelphia season 4, My Name Is Earl season 4, Private Practice season 2, and Top Chef season 5.