Hi, I'm looking for a basic 55inch 4k tv for my living room, upgrading from an old Sharp 40inch FHD tv. Basic because I already have tv box (xiaomi mibox s) and also astro. Budget around 2k (is it enough?). Also I want to ask if Astro connect to 4k tv, will it upscale? Will it look good or weird? As far as i know Astro is only FHD resolution. TQ.