Each episode of the series ran for 30 minutes. There was a "Producer Says" part at the end of each episode when "The Magic School Bus" had no advertisements. There were no advertisements on international television, VHS, and DVD. The "Producer Says" part was taken out when "The Magic School Bus" had advertisements. This way, there was enough time for advertisements. Sometimes the episode faded to black at the start of the advertisements. When there are no advertisements, the episode faded to black and then faded back in.