The crew is mostly happy to be there, until Dennis (Glenn Howerton) notices the cameras filming them. Ava (Janelle James) tries to dismiss it, saying, "We have like a Vanderpump thing going on ...

And so far, fans are pleased. A.P. Bio stars Glenn Howerton as Jack Griffin, a disgraced former Harvard professor who finds his job usurped by his literary and professional nemesis, Miles Leonard.

It might be always sunny in Philadelphia, but that doesn't mean there aren't some clouds about to hit Abbott Elementary school. But Dennis isn't having it. "No, I don't think so," he says. "I know ...