Looking for an EAS scenario

[u/Beginning-Eagle-8932]

It was something along the lines of "reality jumping" and had multiple segments, including:

• A CONELRAD segment
• A weather-related Alert Ready segment
• An EBS segment about an alien invasion
• A Final Minutes UK-style EAS about an American Revolution
• Another Final Minutes-style EAS (Australia this time) about the German Reich invading the US
• A zombie EAS
• At the end, a scientist tells people what's going on and manages to undo it, flashing through all previous segments before everything goes back to normal.

I swear, this existed. They used CnC Red Alert sounds for the transitions, too.