Bill Nye (born William Sanford Nye, 1955) is an American comedian, science educator, and mechanical engineer best known as "Bill Nye the Science Guy." He hosted the PBS children's show Bill Nye the Science Guy from 1993-1997, and continues to host many science related shows today.
Nye was spoofed in episode 3766 of Sesame Street in a sketch. Cookie Monster, dressed in a labcoat, asks the question, "Do cookies taste good?" His assistant in the experiment is an Anything Muppet made to resemble Bill Nye. (SSvideo)
Nye appeared in the live-action segments of Back to the Future: The Animated Series as an assistant to Dr. Emmett Brown (played by Christopher Lloyd). He has appeared as his Science Guy persona at the Walt Disney World attractions Universe of Energy (with Ellen DeGeneres and Alex Trebek), the DINOSAUR attraction, and CyberSpace Mountain. He also made a guest appearance on The Mickey Mouse Club's Anything Can Happen Day, and is a regular expert life line on Who Wants to Be a Millionaire.