As first reported by TV Line, comedy legend Bob Newhart will guest star in an episode of The Big Bang Theory.
Bob Newhart will play the role of “Professor Proton,” the former host of Sheldon’s favorite science show as a kid. (We will come to learn that the Professor played a big part in the childhoods of both Sheldon and Leonard.)
According to a BBT source, Sheldon tracks his idol down online and discovers that he can be hired out for parties and events. Naturally, Sheldon books him to come to their house.
The episode has been set to air on Thursday, May 2.