I do. What class is linear?
Is there any other way of removing interference from video signal?
Would this be a case of connecting neutrals?
Would shielded cable solve this?
Would I need to shield speaker cable or video cable, or both?
I'll give the linear amp a go
that looks like you have wiped out the sync pulses.
What does wiped out sync pulses mean?
Everything I find runs on 12vac.