Issue #276 of Home Cinema Choice is on sale today – and as usual it's packed with AV goodness... We've gone 4K crazy this month as we rate no less than five flagship Ultra HD TVs. First up is this issue's cover star, Philips' range-topping 55POS9002, a second-generation OLED TV with Ambilight technology that delivers naturalistic 4K visuals at an affordable price. And if that 55in model doesn't quite measure up to your demands, our latest grouptest sees LG's OLED65W7, Loewe's Bild 7.65, Panasonic's TX-65EZ1002 and Sony's KD-75XE9405 do battle to be crowned king of the premium largescreen TVs. Elsewhere, Denon's innovative HEOS 5.1-channel AVR and DALI's in-wall Phantom S 5.1 loudspeaker array are put to the test. We also have an exclusive review of Focal's slick Sib Evo Dolby Atmos 5.1.2 sub/sat speaker package – is this the easiest way yet to give your cinema set-up a 3D audio upgrade? While there are thousands of great Blu-rays released here in the UK, any film fan worth their salt knows that there are still loads of great discs that never make it to these shores. With this in mind, Team HCC looks to the US and beyond to highlight the labels and discs that dedicated cinephiles should keep a keen eye on. Also: BBC bigwig reveals why wide colour, HDR and 4K should go hand-in-hand; Riva boss pledges to bring sound quality back to multiroom speakers; the hottest kit from the CES Asia tech expo; Skywalker Sound's Jeremy Bowker spills the secrets behind making movie soundtracks; Acer sets out to make 4K HDR mainstream with its affordable V7850 projector; LG's mid-range 55SJ850V flatscreen lowers the entry cost of Dolby Vision; The Fate of the Furious and Dredd dazzle on 4K Blu-ray; plus all of the usual news, opinion, competitions and Blu-ray/DVD reviews.