I don't know how relevant this is now, but have you tried the procedure I outlined for rejuvenating the CRT? No special stuff needed, use the stuff in your junkbox to do it!
--I posted it here somewhere...
Its a Lot less stressful than the usual booster like a B-K, Muter etc.--ie, no arcing and sparking that just ruins the cathode surface, burning away good and bad material alike....
I/we in the UK recently have been messing round trying some really stuffed CRT's with some good success. The Sony KV1320 I did is still really good...
With all the differences between sets and countries, the CRT low-emission issue is much the same!
