Super VHS = ~1990 standard = 425 lines of horizontal resolution. Super VHS has almost-DVD-like clarity, and I love it. It's great for recording TV without any degradation! And I'd love to own the original trilogy in this format.
By the way, there's a NEW standard out there = Digital VHS = capable of recording 1080-interlaced HDTV upto 4 hours. Can also record 50 hours of DVDs.
troy