That's Impossible is a TV show filmed before a live audience. The concept is that contestants will bring in "impossible" things to demonstrate.
Scooby-Doo and Scrappy-Doo (second series)
Shaggy Rogers, Scooby-Doo, and Scrappy-Doo had bought tickets to the show's taping in order to be in the audience. But an Alien created pod clones to destroy the real trio, and in their place, go on stage and announce to the audience and TV viewers that Earth is now part of the Alien's empire and they must submit.
- The show's name is incorrectly spelled, with no apostrophe in "Thats." The correct version should have been a slurred version of "that is".
- The show appears to be based off the reality show That's Incredible, which debuted the same year as the episode's original airing.