I do not watch the following for great picture quality or sound(although the dolby matrixed 4 track encoded VHS hi-fi stereo tracks when decoded through dolby pro-logic give modern 5.1 digital tracks a run for their money).
I just watch them to enjoy the most important thing above all others--the story.
1)
Star Wars:
Twentieth Century Fox 1982 VHS linear stereo video (rental library 1st home video release)
2)
Empire Strikes Back:
CBS/Fox 1984 VHS hi-fi stereo video(1st home video release)
3)
Return Of The Jedi:
CBS/Fox 1986 VHS hi-fi stereo video(1st home video release)
There is also something quite cool about watching video tapes that are roughly from the era that the films had their original theatrical runs.