Throbbing Gristle - Live At Oundle School (1980)

The infamous performance at the school for boys (aged 16 and under) in Peterburough, England.  Apparently, the group was invited care of one young fan (not Jhonn Balance, contrary to rumors) who told his headmaster that the group was "like John Cage".

Throbbing Gristle- Heathen Earth (1980)

The unmastered live and uncut snuff quality videocassette of the band recording their "live" album in front of some invited guests including writer Jon Savage.