I have an older Roku Premiere+ (Model 4630X) and want to be able to upscale HD input to 4K for my Sony TV. My current Roku has no setting for upscaling and the input to my TV is shown as HD 1080p.
Roku tells me they will no longer support this model and I should upgrade. I can do that, but would like something to upscale input HD to 4K. Do any of the new Roku devices upscale? And, if so, which ones? All I see on the Roku webpages is information about how it will play 4K, but nothing about upscaling.