Whilst looking up technical info on a Commodore 1701 monitor I came across this :
(http://computershopper.com/shoptalk/product-shredz64.jpg)
how ace!!
from : http://computershopper.com/shoptalk/2008/03/12/shredz64_sends_hardware_back_to_the_future
Just imagine if you come up with it back then you would be swimming in gold