The Big Bang Theory': Bob Newhart says guest stint 'was like a rock concert' | Big bang theory, Bigbang, Sheldon
Big Bang Theory' Books Bob Newhart's Return, Adds Bill Nye – The Hollywood Reporter
Big Bang Theory' Cast on Life Lessons From Bob Newhart – The Hollywood Reporter
Bob Newhart wins his first Emmy for 'The Big Bang Theory' | EW.com
Big Bang Theory: What happened to Professor Proton? Why did he leave? | TV & Radio | Showbiz & TV | Express.co.uk
Bob Newhart returns to 'Big Bang Theory' with Bill Nye
The Big Bang Theory': Bob Newhart returns as Professor Proton in final season, and the cast can't be happier | MEAWW
Bob Newhart and Bill Nye to guest on 'The Big Bang Theory' | EW.com
How The Big Bang Theory Landed Bob Newhart As Professor Proton | Cinemablend
From Bob Newhart to Stan Lee, 25 great 'Big Bang Theory' guest stars. - cleveland.com
Bob Newhart, Bill Nye Will Butt Heads on The Big Bang Theory - Parade: Entertainment, Recipes, Health, Life, Holidays
Big Bang Theory': Bob Newhart Returning in Final Season 12 as Proton | TVLine
Bob Newhart - Wikipedia
The Big Bang Theory' Sneak Peek: Bob Newhart is “Professor Proton”
Bob Newhart signed 8x10 photo PSA/DNA Autographed Big Bang Theory | eBay
Big Bang Theory' to use the Force and Bob Newhart in special 'Star Wars' Day episode
The Big Bang Theory" The Proton Resurgence (TV Episode 2013) - IMDb
Bob Newhart Returns to The Big Bang Theory in Season 11
TV Babble Podcast: Bob Newhart Talks His Long Career & 'Big Bang Theory' Return
The Big Bang Theory' Cast Is So Happy to Have Bob Newhart Back for the Final Season – Watch! | Entertainment Tonight
Big Bang Theory' Sets Bob Newhart's Return in Season 11 – The Hollywood Reporter
Bob Newhart, aka 'Professor Proton,' bids farewell to 'Big Bang Theory'
From Bob Newhart to Stan Lee, 25 great 'Big Bang Theory' guest stars. - cleveland.com
Big Bang Theory': Bob Newhart Returning — Season 9 Spoilers, Casting | TVLine
Bob Newhart on His 'Big Bang Theory' Gig: 'It's Like Going Back in Time' – The Hollywood Reporter
Bob Newhart returns to "The Big Bang Theory" - CBS News
