The picture is wavey when you turn it on but gets better when it warms up

Contact the authorized service center. Your TV need a though check-up. Gopakumar Gopalan Google

Hello, Change horizontal driver buffer transistor's and capacitor's. 7461 7463 transistor's. Caps 2455 2405 near transistor's. Please leave your email address, I will try to find the service manual for you. Best regards, Arpi

what brand? could be a ground problem or bad crt

Sounds like your set has dried caps in the Power Supply, take it to a decent tech, its not something you should try to do yourself as dangerous voltages can still be present evn if the set is unplugged.

Zebra19. This problem is a common occurance in these sets. So common that there is a service bulliteen to service centers on it. Fixing it is not easy though. It ivolves 11 very very small micro capacitors. on what is known as the hypermodule. In an ideal world replacing the hypermodule is the best course of action. but.. these are almost impossible to find. if you are very good at soldering and have a lighted magnifer and very small twezzers it can be fixed. but if you damage the board....... i have done this repair about 6 times.. replacing them is what need to happen. 11 10 microfard surface caps this is the hypermodule ... it is a board in a sheilded can that plugs in behind the input termals in the back. kind hard to get too. the caps are the small circular components that you see with the red and black marks on it.
willie at fordtv.com

you have a bad capacitor in the deflection circuit.You will need some diagnosing and testing to find which one. An ESR meter will make short work of that but they are expensive meters.

Hyper board bad = No longer available part # 23148024 PTS
rebuild only...send core in........57H82..............................T.

Part # is specific to model !....

The waviness is most likely a weak capacitor or leaky diode in the deflection circuit. The logo is burned into the tubes phosphorus from being left on the espn station all the time. That would require new tubes or have yours rebuilt either way that will be expensive. Repair the waviness should not be that expensive I would estimate a shop charges tobe between 150 and 300 depending on where you have the repairs done. Hope this helps.

Check the main filter cap and B+ line.

The hyper or scan converter module is bad in this set. You can certainly have this set repaired and will run about 275 to 350 depending on where and who does the repair. Good Luck