Hack
In a segment aired on 1983, two BBC news presenters were trying to explain how email worked to the viewers at home. The technology was just introduced at that time. However, none of them expected to be hacked while on a live broadcast.
They were given a pirate song rather than the most recent messages or letters that had been sent to them. This event would go down in history as the first live hacking that occurred during broadcast.
ZZZZZ
Imagine a news anchor falling asleep during a live broadcast of the news. Well, the notorious Tucker Carlson is the one who actually did that. However, he was known to be a contentious figure from the beginning.
After being confronted by his fellow anchors and asked why he had nodded off in the middle of the live broadcast, he responded by saying that he had been unable to get any sleep because he was filling in for another anchor.