7:30 p.m. Oct. 19, NBC The most important part of the "Community" recap is that series creator Dan Harmon exited the show after a very public battle with co-star Chevy Chase. New show runners Moses Port and David Guarascio ("Happy Endings") promised at San Diego Comic Con that the show wouldn't go mainstream in its 13-episode fourth season. From what I hear about upcoming episodes, I would say maybe that's true. Danny Pudi, who plays Abed, said the Greendale study group will enroll in some history classes this fall. Turns out they include a class called The History of Ice Cream. Dean Pelton (Jim Rash) will let Jim Winger (Joel McHale) into the class only if he competes in a "Hunger Games" style competition. As EW reports, Jeff not only competes, he also performs a tango with the dean. Later in the season, Malcolm McDowell will play the gang's new history teacher, Professor Cornwallis. Other guest stars include "Battlestar Galactica" vet Tricia Helfer, Brit comic Matt Lucas, Giancarlo Esposito reprising his role as Pierce's half-brother, and Josh Brolin as Jeff's father.