Home video before the '80's

[Telecolor 3007]

Hello there folks. Since I do live in a Romania, videokarma is for a long time a place to find info about U.S.A.
Well, I do have a curiosity now: who could afford before the '80's home video. Not only LaserDisc was expensive in the '70's, but also video cassettes. Betamax and V.H.S. however where cheap comparted to system like Cartrivison (did you know some one who owned such machines).
Did you ever seen a home V.T.R.?
There where people that where eager to make some loans for video stuff?
And how did "Kokak" Videoplayer VP 1 (Super 8 film "videoplayer") produced image without a camera.