[LM24] Group C regs/U.S. Le Mans TV coverage

[Jared]

Two questions:

1) Where can I find a copy of the Group C rules from the late 1980's or early 1990's?

2) Was the 24 Hours of Le Mans covered in the U.S. before Speedvision was created? As a child in the late 80's, I remember watching a prototype race and I believe that it was at Le Mans, because I remember a really long straightaway. Did ESPN or anyone show portions of the race?

Any info would be appreciated.