Getting schooled: The Valediction (Room 222, 1970)

 From season 2 of Room 222:

While some high schools have already had commencement, as recently as last month, schools in the 518 will begin graduation exercises in the 2nd half of June, though some private schools have already had theirs.

With that in mind, we present "The Valediction", in which a rebellious senior (Richard Dreyfuss) uses the occasion to make his views heard, however controversial they might be. Jason Wingreen, at the time a respected character actor who'd later land a regular gig on All in The Family & Archie Bunker's Place, plays an appreciative parent.

Rating: A.