"A.P. Bio" is an NBC-turned-Peacock comedy set in a high school. While the show follows the exploits of a teacher, similar to other popular school-based sitcoms like "English Teacher" and "Abbott ...

"I'm sad to announce that AP Bio will not be renewed for a 5th season," O'Brien tweeted. "But mostly I'm feeling grateful right now. To all the fans who watched the show and fought for it to come back ...