Origninally made by artists from Disney, the Dragon's Lair arcade game revolutionized the use of animation in video games. When the TV version came out, the producers of the show brought with it the same choice-based feature of the video game. When it came time for a commercial, viewers were asked what would they do in the cliffhanger situation. When the show came back, we'd see the results of the choices offerred. How's that for interactive programming?
Video Game Cartoons Become Interactive