Munson explained that the goal of the casting changes was "to lighten the show up a bit".

Prior to filming the pilot, there were several casting changes.

The show's later years were known for frequent casting changes:

Other important casting changes had to be made for the third film.

"American Idol" may be facing some more casting changes-- and this one could rock the future of the show!

The show was known for frequent casting changes.

In addition to the casting changes, there were also alterations made to the show itself.

When the show moved to NBC, in addition to the casting changes, the show's production changed.

The film went through various casting changes and production issues before filming began in 1982.

Several casting changes were made as a result of the five-year jump.