A:AnswerBuy a better brand TV next time. Toshiba, Vizio, TCL, Hisense, etc are all junk. You likely have a bad capacitor in the TV power supply. About $2 to fix if you have the know-how.
A:AnswerHonestly, the dimensions are not identified in the manual, but it is around 36" to 38" from end to end. TV is @ 49" Now, please aim for a 50" or more due to aesthetics and safety.