The show first aired in primetime from August 8 to September 12, 1987; then it aired on Saturday mornings from September 12, 1987 to December 30, 1989 & again from June 2 to September 1, 1990.
Four celebrities competed and Alan Thicke introduced a video clip about an animal; at some point, the video was paused and Thicke asked a question about the clip. The celebrities give their answers, after which the remainder of the clip was played, revealing the answer.
Any celebrities giving the correct answer received a point; score was kept by placing a stuffed animal (a monkey in the first season, a hedgehog in later seasons) in front of the celebrity's podium.
The celeb with the most toy animals/points won the game and $2,500 for their favorite animal charity. If a tie occurred, the money was split between the charities.
On segues to two commercial breaks, a hedgehog puppet named "Reggie the Heggie" (performed by Susan Blu) gave animal facts to the home viewers and read home-viewer mail.