The Big Bang Theory
CBS, 8:00 p.m. ET
Tonight, this CBS sitcom boldly goes into the land of Star Trek – thanks to a collectible toy that figures prominently in this episode’s plot. Also a prominent figure: a little toy Mr. Spock, whose voice is provided, especially for this sitcom, by none other than Leonard Nimoy. Good thing, too. Getting any other actor to supply the voice for a Spock toy would have been so… illogical.