This is the only time that a complete TV show intro will appear on this channel. I'm uploading it because it is extremely rare to come across this intro, especially in such great quality. PBS was notorious for updating the intro on older episodes with a newer intro. This meant that by 2001, this intro was replaced on older episodes with the final intro. Ironically enough, I got this from an episode that had this intro replace the original intro (the first episode of Season 8).