The Mystic Knights of the Oingo Boingo on the Gong Show. 1976.

Buddy Hackett gave them a 6. Bill Bixby game them a 10.
Here they are with a 1985 live version of ‘Who Do You Want To Be’:

And ‘No One Lives Forever’ at their Farewell concert: (Watch this one, awesome)

Entire Farewell Concert is here.