I bought this set dec 10. in the last 2 months we've noticed horizontal lines and shadows. I've checked everything according to cable lines. It is the TV set. The service center admitted that this set does have a picture tube problem. they can fix it for $274.00. I bought it originaly for about that price. I'm really angry that it is dying so soon. All other TV's I've ever owned have lasted for many many years! I really liked this set up till this problem. In my opionion, less than one year for your money is not worth it!