In an interview with The Hollywood Reporter, Bob Newhart shared that he’s a fan of The Big Bang Theory and has wanted to work with series creator Chuck Lorre for several years. He also explained that he asked to have his lines read for the show while an audience watched. “The only request I made was this [my portion] had to be done in front of a live audience because I was used to a live audience with my shows and standup background,” Newhart said.
The “Newhart” actor also opened up about a recurring role on “The Big Bang Theory” during an interview with Gold Derby in August 2013. He shared that he wasn’t sure if live studio audiences would recognize him while filming Season 6 Episode 22. Newhart explained that he asked Lorre if he would announce he would be the episode’s guest star before showing up on the set. “He said, ‘No, no, we’ll just let you discover them,'” Newhart recalled. “And I wasn’t immodest, but I said — I wasn’t overly modest, but I said ‘what if they don’t recognize me’ and he said ‘don’t worry, they will recognize you’ and they did and there was Applause and a standing ovation.”
Newhart then joked that he had asked for a video of the audience’s warm welcome.
https://www.looper.com/1028692/the-legendary-bob-newhart-agreed-to-appear-on-the-big-bang-theory-under-one-condition/ The legendary Bob Newhart has agreed to appear in The Big Bang Theory on one condition