12. Oh, Dolly
Who could forget the many cameo appearances by high profile stars featured over the years? Like the time when country music legend Dolly Parton was used to start the show with “Good Morning, Captain!” It happened during the 3rd episode of Season 21, and later in the show she was scheduled to perform a duet with the Captain. However, she was overcome with uncontrollable laughter in the middle of the song. At the time I’m sure the producers were mortified that it was happening, but when we look back on it now it’s one of the great moments in TV history.