According to the Sams website they all use the same folder, which is here: http://www.earlytelevision.org/pdf/R...ams-354-16.pdf

In the ad it lists difference in the more expensive sets as having a V type antenna, a leather handle, and a "Living Image" picture; whatever that is. I guess those were worth an extra $15 back then.

The only difference I can see in the Sams is that some models had an extra RF choke on the plate of the 6CH8, and a different VHF-UHF tuner.

The only difference