We compare the picture quality & bit-rate of iTunes Movies streaming in 4K Dolby Vision HDR from an Apple TV 4K box versus Ultra HD Blu-rays played from an OPPO UDP-203, displayed on two LG 65-inch B7 OLED TVs which are calibrated. The two films compared are Spider-man: Homecoming & Transformers: The Last Knight, which are available in Dolby Vision on both iTunes Movies and 4K Blu-ray platforms. Please do not judge image quality solely from this video alone, because our camera's limited dynamic range cannot fully capture the HDR presentation accurately. Also, 2017 OLEDs introduce some blue tint off-axis which is unavoidable due to our camera/ TV placement, leading to colour differences which are not present in real-life viewing. ======================== **Click Below to SUBSCRIBE for More Reviews, Sneak Peeks & Tips: www.youtube.com/channel/UCcCYOO2uYPnG-21WDOWdwew?sub_confirmation=1 ======================== VISIT HDTV Test www.hdtvtest.co.uk/ FOLLOW US! www.facebook.com/HDTVTest twitter.com/hdtvtest twitter.com/vincent_teoh