“The Diplomat’s Club” — Season 6

George offends his black boss by telling him he looks like Sugar Ray Leonard, then goes out of his way to prove he is not racist by trying to find a black man who will pretend to be his friend. George even brings Jerry’s one-time exterminator to dinner to meet the boss. Can you imagine the uproar that would ensue if this were to air as a new episode today?

“The Chinese Woman” — Season 6

George’s phone lines are crossed with a woman Jerry thinks is Chinese — her name, after all, is Donna Chang (and in “Seinfeld” world, that’s enough proof). He tells Elaine he should’ve talked to her because he likes Asian women — which she views as racist. Jerry asks, “How can it be racist if I like their race?” The woman turns out to be a white woman, and Jerry begins dating her — because, at the end of the day, she’s still a woman.

“The Switch” — Season 6

As George brags about his new girlfriend, a model, he mentions she eats like there’s no tomorrow — so Kramer suggests she’s bulimic. George fuels Kramer’s suggestion by confirming that she does go to the ladies room after every meal. George begins thinking she’s “refunding” or “throwing money down the toilet” — but he needs proof. George asks Kramer’s mother (a bathroom matron) to spy on the woman and when she doesn’t show, he winds up walking into the bathroom to find the model brushing her hair. Awkward!