When’s 4K not 4K and when are you kinda pleased that it isn’t? Allow us to explain: Epson has unveiled its new 4K PRO-UHD projector range, consisting of the EH-TW8400, EH-TW9400 and EH-TW9400W all with a 3LCD design and HDR that produce stunning pictures (we had a preview in the last week of March and