It always does it straight after the appearance of 70s style vertical orange-brown and black lines! It did the same last summer, was fine all winter then started again a few weeks ago just as the weather warmed up. It's a Panasonic Viera. Bought second hand. Have no idea how old it was when we got it. We've had it 2 years.
Has anyone got any idea what's causing it and whether it's worth repair.
Thanks in advance.