‘The Big Bang Theory’ Sneak Peek: Bob Newhart is “Professor Proton”
A few weeks ago, we learned that CBS' highest-rated sitcom 'The Big Bang Theory' had a major bit of sitcom history in its corner, as famed comedian and 'Newhart' star Bob Newhart had signed on for a guest appearance portraying one of Sheldon's childhood heroes. Now, the first images of Newhart on set as "Professor Proton" have arrived, while new talk suggests the character could return i