One of the funniest and coolest guys ever is going to be on one of my favorite TV shows.  Bob Newhart will be guesting on Big Bang Theory.  TVLine is reporting:

 The 6 Emmy nominee will play Professor Proton, former host of Sheldon’s favorite science show as a kid. Sheldon’s long-awaited opportunity to meet his childhood hero (who also played a part in Leonard’s childhood) comes when he realizes that Professor Proton can be hired for parties and events.

Newhart’s episode will air on Thursday, May 2.  It's appointment viewing.  I'll have the DVR set just in case.