He is most recognized for his work on:
* "The Tonight Show Starring Johnny Carson" - He served as a writer and producer on the legendary late-night talk show for over 20 years.
* "The Tonight Show with Jay Leno" - He continued his role as writer and producer after Carson retired, transitioning to Leno's tenure.
* "Late Night with Conan O'Brien" - He continued to work as a writer and producer on this show after Leno stepped down.
Therefore, you are unlikely to find John Philbin in any movie or television projects as an actor. He is a key figure in the history of late-night television, but his contributions were mainly as a creative force behind the scenes.