Knights Of The Turntables
One of the first southern California turntable groups were the Knights. This had to be one of the first time anyone ever took the turntable seriously as an instrument, and you can definitely see them as a predecessor to the Scratch Piklz and ultimately Turntabalism as we know it. Here's a clip of them on a local show called Night Fresh.
This is probably right around the the time Raising Hell was released and it's hard not to see the influence on these emcees!