My Dad bought a new Trinitron about '71 or '72. IIRC the model number was KV-1701 and I can still visualize it down to the smallest detail. It too had the instant on and there was a switch on the back to turn this on or off. The picture was outstanding and seemed sharper than the majority of the competition, but lookng back I suspect that part of the reason he bought it was all the hype surrounding the Trinitrons at that time....plus the reknowned Sony quality (at that time anyway).

Price was around $300 and we got it a discount place in Brooklyn called JGE "What's the stooorrrrryyy Jerry?" Who knows about that? HUGE ad campaign back then in the NYC area.

Anthony