Geoffrey Owens was often mistaken for Phillip Michael Thomas. Owens auditioned for the role of Tubbs on Miami Vice, but was turned down because he was considered to young to be a veteran streetwise cop. A year later, Owens landed the role of Elvin Thibadoux.
When Mrs. Huxtable comes home, you bring the car around.
In the pilot, Clair asks "Cliff, why do we have four children?" He replies, "Because we didn't want five." A few episodes later, Sondra was added to the cast as their fifth child, who was away at college.
The credit sequences that varied from season to season all have one thing in common-the last shot in each one is a closeup of Bill Cosby's face, and in all but the first, he is smiling.
The season 1 DVD set was made up of edited, syndication-length episodes missing about 2 minutes per episode from their original broadcast. It was only because of the consumer outcry that season 2 and beyond were released unedited. The "Complete Series" set includes all 8 seasons, including the first one, in the original uncut network versions.