The Simpsons opening sequence is a callback to the film. Bart writes "I will not wait 20 years to make another movie" on the chalkboard and skateboards through Springfield, which is still recovering from the dome incident. Several movie characters reappear, including president Schwarzenegger, the Multi-Eyed Squirrel, Colin, Russ Cargill, and the Medicine Woman. We also see that the Simpsons' house is still under construction and the silo is strapped to Homer's car. Plopper the pig is also featured for the first time in the series, during the couch gag and Homer refers to him as "my summer love." A special opening sequence, featuring
Where in Time Is Carmen Sandiego? (TV show) and a set of the most recent Carmen Sandiego CD-ROM games (all of which also featured Lynne Thigpen as the Chief). The music on the show was performed by The Engine Crew. The music package included the theme song and the songs about clues in the engine room. The theme was played in the opening and closing sequences. When the contestant was heading for the trail of time, the theme was sometimes edited after the crew sang, "We're on the case" and the villains say, "And they're chasing us through history!" (used in first season). In the second season, when