PBS Science Guy is a term used to refer to Bill Nye, who is an American science communicator, television presenter, and mechanical engineer. He is best known for hosting the PBS children's science show Bill Nye the Science Guy from 1993 to 1998. His mission is to help foster a scientifically literate society and to help people everywhere understand and appreciate the science that makes our world work. The crossword solutions for PBS Science Guy are NYE (3 letters) and BILLNYE (7 letters).