On his regular television show “Last Week Tonight,” John Oliver explains how big corporations like Amazon prevent their workers from forming a union. They hire expensive consultants to advise them on tactics. They bombard their workers with warnings about what they will lose if they join a union. They require them to watch anti-union videos.

His show is both informative and amusing. He runs an anti-union video in which two actors play the part of workers who warn their colleagues not to join the union. After all, “we are one big family here.” Oliver points out that the two actors belong to a union. When he questions them about their hypocrisy, he responds that he can be paid to act like a rapist, but that doesn’t make him a rapist.

This show is a must-see. Oliver relies on data gathered by the Economic Policy Institute in D.C., which is a rare think tank that supports labor unions and progressive legislation.