[GeronL]

networks can show nudity

there was that cop show with Rick Shroeder that showed a “dead” nude girl in all its glory

[Question_Assumptions]

There was actually quite a bit of nudity, including full frontal nudity, on PBS in the late 1970s and 1980 before President Reagan took office. Watch the shows they had, unedited, on Masterpiece Theater at the time — I, Claudius, Therese Raquin, and Danger: UXB to give three examples.