. The show had 100 episodes each focusing on science topics.
The 20th episode of the second season focused on Respiration and it originally aired on January 7,1995. A different version of this episode was made and it had quite a few differences from the more well known version. The opening scene had Bill Nye wearing a coat and breathing in the cold instead of him yelling at the mountain. Another scene that was cut from the more common version was a scene where Bill Nye placed a coin inside the vending machine and the Vending Machine shaked and smoked. The video was uploaded in 2012 before getting taken down due to copyright infringement. No one has reuploaded this alternate version.