I thought you said in the video that you did have neckglow.
Now that we know you have a completely dead tube, diagnosis will be completely different than if you did have neckglow.
First off, do as ed says. If anyone knows the fix, its him.
I'd also start with some very basics.
#1: Do you have 100VAC reaching the power input on the monitor?
#2: With the power off, pop the fuse and check it for continuity. Some monitors will still measure as a good fuse if you measure it in the monitor due to other circuitry in the system. Always pop the fuse (or at least lift one side) and measure it with your meter.
#3: Make sure all of your connections are good an solid, especially the single-pin connectors on the neckboard.