A:AnswerIt can, but it’s made specifically for a 55” tv. When using the sync box, the entertainment area is matched up with the strip which is matched up with the size of the tv. So it may be off a little if you are getting it for the sync box. Otherwise it won’t matter and it will fit on a 45” tv. You may have to finagle it as it is the precise size of the sides and top of a 55” tv.
A:AnswerWhile it is possible, it may not be advisable. You will need to bring it closer to the outer edges of the TV so it stretches out more and the addressable LEDs may not match your TV zones properly.
A:AnswerThe 55" TV strip is 85.2"
It's not "officially supported but measure around your TV to see how much room you have. My 49" LG should fit this no problem.