“Here's a knife! Here's a gun! There'll be fun for everyone!”

Sitcom Halloween stakes have literally never been higher.

Sometimes the Halloween spirit means killing off your entire cast.

Harriette Winslow has never looked so good.

Is this the scariest moment in sitcom history?

Let’s get inappropriately Lynchian for the Disney afternoon.

“Let’s do Brigadoon, even if Lucy is clearly not Scottish.”

The crossover that wasn’t but then was. With Muppets.

The episode where Lisa Whelchel made Dippity Doo scary.

Not the first example of a weird sitcom ep, but probably the most famous.

From “mom’s dead!” to “oh no, zombies!” in eight quick episodes.