Howie Mandel serves as a judge on both “America’s Got Talent” and the global winter edition of the franchise, “America’s Got Talent: The Champions.” In addition, he is executive producer and host of the game show “Deal or No Deal,” which returned with new episodes in December on CNBC.

Mandel has remained a constant force in show business for more than 30 years. He has served as a judge for a decade on NBC’s hit summer talent competition series “America’s Got Talent,” which recently finished airing its 14th season on NBC. He is also a judge on the global winter edition of the series, ...