2 yr extended warranty just expired April 1.

(i just found out it runs concurrently with manufacturer warranty!) Thought I had 3 yrs covered. GE electronics doesnt cover plasmas anymore (go figure!).
Tv hooked up with directv tivo (samsung 2gen box) and jvc surround sound system. also has monster cable conditioner box attached.
Vertical bands start in varioous colors flashing then to solid black. Eventually goes away after about 5-10 minutes then re-appears.
No help from JVC or GE electronics. Am i screwed? Thought I got a great deal 2 yrs ago, a $5000 tv for $3500! JVC did give me a list of service centers, called the closest one in West LA (i'm in Compton) and he says "I'm out of his service area"

I'M ONLY 18 MILES AWAY!!!
if you get a solution please post it.
cvb