Thank you for posting your question on Just Answer! I will be happy to help you with this problem. Can you please give us some more information so I can better answer your questions.
-If you push the MENU button on the tv, does the menu show in front or behind the bands?-How old is the unit?- Do you have this problem while watching all different devices hooked to this television? (DVD player, cable, satellite, game counsel, etc.)
OK while the cable box is on, unplug it from the wall, let it sit 5 mins and plug it back in. Does anything change?
Do you have anything else in the house you can hook to the tv? (dvd, game system,) that we can use to test?
OK good deal, let me know if we get a picture from the laptop or if we get vertical bands?
Ok then we have a bad cable box for sure.
At this point you are going to need to call customer service for the cable company to get the box replaced.