A new breed of supercats figured out how to condense themselves enough so that they could fit in those holes. It was a sad day for mice everywhere.

Did you know that dihydrogen monoxide kills more people than any other liquid? And yet, the government does nothing to ban it. This deadly liquid could be anywhere, even in your home!

The Simpsons comes to mind. There’s usually a plot, but it’s not too complicated and each episode is self contained for the most part. Seinfeld is similar with possibly less plot (it is a show about nothing after all).