https://www.looper.com/1618024/abc-sitcom-full-frontal-nudity-welcome-back-kotter/

An episode of a classic ABC sitcom (https://unobtainium13.com/tag/welcome-back-kotter/) surprisingly features a shot of full-frontal nudity that has somehow eluded the network's censors for decades.

I won't click on this, I can guess it was likely the Kotters' baby.

Anything else is totally outrageous. Please don't spam the boards with wild clickbait.