United Kingdom, May 29 -- Howie Mandel believes Simon Cowell is responsible for "changing more lives than any one idea on television".

The 69-year-old actor has served as a judge on 'America's Got Talent' since 2010, and Howie is full of admiration for Simon, the show's creator.

Howie told People: "Every time somebody gets a golden buzzer or somebody wins something or somebody gets an opportunity and you see them fall to their knees and cry and their family joins them on stage and you know their life is never going to be the same, I run over to his seat behind him.

"And I go, 'You did this, buddy. You came up with an idea. A lot of us come up with ideas and we want to do TV shows and we want to entertain and we want to get a laugh, but...