onairb said:...the next theme was used for the following two seasons(with the 'Booker T' sax solo, and Cosby's 'This is the best elevator music I ever heard!' line), and the final theme(a hip-hop trumpet version by Lester Bowie), which had been intended for season 7, was instead delayed to season 8.
I believe the Season 8 open was used for the first couple of seasons of Season 7, but was delayed due to the lawsuit in regards to the rights of the mural artwork, promoting the producers to recycle the previous season's open instead, the first time a theme was used for more than one season.