Just had geek squad out, guy was very nice but I'm a bit worried. He took a look at it, saw the problem. Said that it "looked like" they'd be able to order a new panel for my VT50, but they wouldn't know for sure until the order was placed. He said when and if the new panel arrives, he can tweak the sustain voltage but he would prefer not to touch it. He said if it turns out that the panel is unavailable, then they'll just give me a replacement.
Guess I'll know sooner or later what they're going to do. Obviously I'd prefer a replacement TV...
ht Panasonic 60" ZT60, Monitor Audio: Silver RX6, RX Centre, Radius 90HD; Martinlogan Dynamo 700, Marantz SR5006, PS3, Oppo BDP-103D
2ch Sony KDL-32W650A, Sonus faber Toy Monitor, REL T3, Marantz PM8004, Sony BDP-S1000ES, JVC T-X3 tuner, Apple TV, Peachtree Audio DAC•iT, Sennheiser HD598
pc Energy CB-5, Audioengine D1, FiiO A1