Thanks for that,
I can post a link to a video I'll shoot today. I checked for ripple on the three main DC outs, the 275V, the 255V and the 160V, I thought that may have been an issue too. But all is ok! I've replaced all the electros on both TVs, but as always, have to factor in new potentially faulty components. No such "luck" this time!
Cheers,
Adam