There was a scene in the not particularly accurate First Olympics miniseries back in 1984 where the college students looked at books about the ancient Olympics

There was a scene in the not particularly accurate First Olympics miniseries back in 1984 where the college students looked at books about the ancient Olympics and saw that the athletes competed in the nude so they came out of the building, sheepishly, in the nude and were sent back by their coach to put some clothes on.