Hi Dave,
Collect it anyway. I have no real idea what's wrong with it but from reading other threads about failing tube problems it is my understanding that normally you get a green or pink hue - not the problems you describe. Therefore it my be an easier fix and hopefully someone else with a bit more tech knowledge will assist.
I used have a BV3 32. Lovely TV.
Steve
If you think nobody cares, try missing a couple of payments.