This site has lots of pictures and info about this little known tv special (Thank God)
Coming to the rescue of curious Star Wars fans like ourselves is The Star Wars Holiday Special, a TV offering that originally aired on November 17, 1978, (A long time ago in a galaxy far, far away, ya might say), and shows us a day in the life of a Star Wars character’s family’s life, including a lot of what passes for popular entertainment across the galaxy. George Lucas himself was not involved in the actual production of the Special, though it does feature nearly every major character from the first Star Wars film, all played by the original actors. The Star Wars Holiday Special also introduces us to Chewbacca’s family, and features the first ever appearance of Boba Fett. All this and numerous musical numbers fill up two hours of terminally cheesy 70′s TV.