Al- I checked it out further last evening and found that only the first season has any special features. They are:

-Audio intros by Jim Nabors on select episodes.
-Audio Commentaries by Jim Nabors and Ronnie Schell on select episodes.
-Pilot episode from TAGS.
-A clip from the Lucy Show, featuring Jim Nabors as a Pyle-like character.
-A nice interview with Jim Nabors on the David Frost Show.
-A clip from the Jim Nabors Hour.

I was very disappointed to find that some of the songs Jim sings in the series were cut due to copyright issues. However I was thrilled to see that, 'The Impossible Dream,' the song Gomer performs at the big Marine show in D.C., is intact. And don't forget the episodes featuring Andy, Opie, Aunt Bee and Goober. Many, many other TAGS alumni to be seen as well. Even the Schwumpster makes a couple of brief appearances.

Seasons 2-5 have entirely different packaging that I'm not thrilled about. The first and last discs must be removed from the case to see the episode listings under them, so I just printed a list out and keep it nearby. All in all, I'm pretty satisfied with the set and would definitely buy it again.