Yes at the end of disc 8 there is a 40th anniversary reunion of the stars. Disc 9 contains Legend of The Champions which was "Beginning" and "Interrogator" sandwiched into a feature film and released in 1983 in attempt to resale the series to other countries (including mine) a little late in the day. Speaking of Beginning, a special copy of that episode was released with a different opening segment and closing segment, bookends if you will. You have 3 choices on the disc with that episodes, watch with the bookends, watch without them, or watch without them and listen to audio commentary from the stars. There is at least one other episode that also offers audio commentary.