From October 1962, this week's online YouTube pick shows how live TV back then had its disadvantages. From an episode of the original What's My Line? mystery guest segment, a random man walks on stage and attempts to start some kind of random presentation of some sort.
What I love is even when John Daly makes it crystal clear that this is NOT the time to make such a thing, random dude here continues to try to present until he's removed from the stage. Makes me think that he had no business there period, let alone during the start of this particular segment. It also makes me think that the people in the control room back then wish they had a five second delay like today.