4k tv display technologies led hdr screen size 49 inches digital tuners freeview tv dvb t dvb c freesat hd tv dvb s2 freesat tv dvb s screen diagonal 123 cm resolution 3 840 x 2 160 pixels aspect ratio 169 series hisense he serie optimal distance from screen 308 m recommended room size medium 15 25 m suitable for football home cinema playstation 4 xbox one hdtv compatible widescreen processor quad core hdmi specification hdmi 14 hdmi i