"Work" or "not work" is not especially the question. The vectorscope and waveform monitor are measuring devices for NTSC video....15750 Hz (OK, OK, 15734.xyzabc) horizontal frequency, 30 Hz field rate, 3.58 MHz color subcarrier, analog, 1 volt peak to-peak video...this video standard is simply not used any more except perhaps in CCTV security systems, and those guys don't care about such fine measurements. Frankly, they (the scopes) quite probably work, Tektronix gear being very, very reliable. Still, they don't even fetch $5 bids on ebay. Tek gear was the industry standard for 25 years. The picture monitors....urgggh, believe me, I have dealt with many many of them over the years and they made cruddy pictures 10 years ago.
Should you turn on the waveform and vectorscope outside their housing just for giggles, be aware that there is ~2200-2500 volts completely exposed on the side.
The switchbox is possibly usable; but it will force you to use BNC (twist-on) connectors. The casters and the powerstrips inside are usable. There may an audio monitor amp inside that could be used for something or other...
But as usual, the effort to use these things and to make the req'd connections is roughly equal to the sub-minimum-wage you'd collect doing something else.
Trust me, I have been down this road many, many times with literally dozens of these things. The slogan I best remember from people who were trying to sell them is:
"We used the lift gate to get them onto the truck. We didn't use the lift gate to get them off the truck."