A:AnswerYes, the screen size is measured diagonally: 49.5".
The screen width from left to right is 44.4".
Just make sure you have an HDMI cable, HDMI enabled cable box and cable box remote.
A:AnswerYou will be able to enjoy true-to-life breathtaking picture quality with more than 8 million pixels for stunning clarity, deep contrast, and vivid colors.
A:AnswerRoku isn't a download, but rather a platform to enable streaming. It can be purchased already put into the TV, as with a couple of brands (TCL and Vizio, I think), or with a plug in device, as you would find with the Apple+ (not sure if there is an Apple+ built in set at this time). It really is going to depend on which interface you want to use. I don't have the Spectrum service, but we've been streaming for about 8 months, now. It really is cheaper than cable and offers a greater flexibility.