She warned viewers that next time Texas may not be as lucky.

He then warned viewers about the future of serious television news.

They bear messages warning viewers to save energy, or help keep clear the city.

Ryan Seacrest did warn viewers at the end of the previous night's performance show that the episode would run overtime.

By not reporting and analyzing new advertisements, he said, journalists could pass up real news, or fail to warn viewers about misleading messages.

Commentators were careful, however, to warn viewers that fiercer fighting and more casualties could still lie ahead.

The three presenters are all elderly middle class women, who warn viewers what programmes not to watch in the coming week.

"But if some high-tech companies like Microsoft get their way, your picture could freeze and become unwatchable," the ad warned viewers.

Also, as games are expensive, the team want to warn viewers about what games they should avoid.

But does it really take a trained critic to warn viewers of what is so plainly, desperately obvious?