Appealed to the official service. In Hong Kong, the issue was resolved quite quickly, within a week: they brought a new matrix and replaced it in 15 minutes. Some pros: My first LCD, and even 55", so I'm impressed (perhaps not objectively). Nevertheless, high color accuracy, uniform backlighting. Not a bad full-time sound. Menu is logical, convenient Magic remote. Useful AI image functions and sound. Cons below: I worked for less than three weeks, and one day a vertical bar appeared across the entire screen.
Kohree 36V To 12V DC/DC Converter Regulator - 10A 120W Golf Cart Voltage Reducer
17 Review
HOMELYLIFE 600W High Power Voltage Reducer DC 48V 60V 72V Step Down To DC 12V 50A Buck Converter Waterproof Module Car Truck Power Regulator Transformer
12 Review
EXuby Digital Converter Box For TV With RF/Coaxial And RCA Cable For Recording And Viewing Full HD Digital Channels Free (Instant Or Scheduled Recording, 1080P HDTV, HDMI Output, 7 Day Program Guide)
12 Review
TV Tuner LUMAX DV-2120HD
15 Review