preemptors of punk, or the last dregs of shock rock?
The Tubes, a band whose very existence I'd forgotten!
c.f. Musical Vomit, the theatrical shock rock band formed by future members of Human League and Heaven 17 at the youth drama / arts center in Sheffield (the Meatwhistle)
There was a South Bank Show them, I believe. The Tubes, not Musical Vomit.
This isn't it, I don't think.
Didn't this number usually involve a gigantic cigarette onstage?