Here's my initial observation with my 55G6. The included manual out of the box is useless, no enough info on how to set the tv correctly. There's an on-screen/buil-in manual but just the same, not enough info. However, the menu is easy to navigate hence setting the TV is not a problem. After setting the date and time, the language, the audio, video (i initially set at sports), the hdmi, i logged in to google. Internet browsing is acceptable, medyo mabilis naman (dahil siguro naka converge ako). On Netflix, i tried HD program, the display is clear but i don't think it is upscaled enough to 4K level. However 4K program is great. I tried HDR program but unfortunately, it seems has no support for such, only sound is outputted but no video. As to the digital tuner, i think you need to have a very good antennae to get good program. The built-in sound bar is good (malakas naman at di tunog lata) but you need to have a subwoofer to mimic cinima listening. This is just my initial take, i will still have to calibrate the settings further.
Screen photos of video played from utube