Most televisions in the late 70's - early 80's
came with RF in only. If
And many of them had a live ('hot') chassis so it was non-trivial to add
a composite video input...
you wanted comp in, you had to buy a
"monitor".
Back then, VCRs weighed 50 lbs and cost around $500.
On the other hand, they still work 20 years later, unlike the modern
plastic crap I see for sale.
-tony