Julie Benz, Sarah Wayne Callies explain spoiler rules in sketch: video
Stars including Julie Benz (Dexter), Sarah Wayne Callies (The Walking Dead), Masi Oka (Heroes), Nelsan Ellis (True Blood) and more speak to the camera to explain what the 'official' rules and the etiquette for discussing spoilers are.
The Wire's Andre Royo and Battlestar Galactica's Michael Trucco also feature.
Back in December, the Community cast collaborated with CollegeHumor to produce a 'Save Greendale' comedy plea video.
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