2. Appearance inspection: The color TV should be beautiful and elegant in appearance, bright and elegant in color, with no scratches on the surface. In addition, the antenna should be flexible in rotation and appropriate in tightness, and all switches and knobs should be flexible and effective.
Generally, there is a serial number on the back of the TV. You can report this number to the after-sales service.
There is a TV bar code on the back of every TV, which is unique to every TV.