Created by James L. Brooks, whose list of credits includes some of the most rewatchable sitcoms of all time , like "The Simpsons" and "The Mary Tyler Moore Show," ABC's "Room 222" ran for 5 seasons between 1969 and 1974. A comedy-drama about the lives of students and faculty at California's fictitious Walt Whitman High School, it netted multiple Emmy nominations, as well as wins for outstanding new series and two of its stars, Michael Constantine and Karen Valentine, in 1970.

Though not as celebrated today as shows like "All in the Family" and other shows produced by Norman Lear that followed in its footsteps, "Room 222" was among the first television series to feature a fully integrated cast and tackle a wide array of topics, from politics to race to religion. Many "Room 222" alums, incl

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