1. There are 1 - 10 colored lines running vertically down the screen.
Probably T-Con or Panel in LED/LCD
On a plasma, Lower C Buffer Boards or Logic Board Panel
2. The tv has sound but no picture.
Lcd TV would be backlights or T-Con, ...
220 to 110
You can convert an outlet from 220 to 110 by changing one leg of the circuit at the panel from the breaker to the common and replacing the 2 pole breaker with a single pole breaker and changing the receptacle if it is only 2 wire plus ...