A clip from the episode (specifically, the scene where Tony learns from Carmela, his wife that their son had been taught that if Columbus had been alive today, he'd be on trial for crimes against humanity like Miloshevic from Yugoslavia, with his son telling him that it wasn't just his teacher who said this about Columbus, but his own textbook as well, to Tony's skepticism) was shown in the segment where Dinesh D'Souza is covering Howard Zinn and his textbook The People's Guide to American History.