Re: "However, from what we know about human behaviour"
We had one of our guys bring in his VCR to repair (not the type of thing we normally worked on), we plugged it into the only composite monitors we had there, monochrome green screens. It would serve the purpose well enough in any case.
However, the only tape that was available at that time to test it, was a porno.
In the middle of "testing" the boss looks over our shoulders, and said "As long as it's not a blue movie, that's allright".