just got the tv today, still playing around
few note that u might interested

1. dvb-t can't use, mayb i dont hv the antenna

2. second remote, aka voice remote is actually bluetooth remote.
u need to pair it before can use

3. i read this tv only support hdmi v1.3,
so only limited to 4k 30fps.
anyway i suspect the tv support 30fps only.
i hvnt found ways to test it... msg me if u know any trick.

4. i can't set the brightness on astro.
there is a brightest setting on LiveTV, but that only affect youtube video.
ps: extreme bright, i hate this...

5. i hv bluetooth controller, tested can play on tv.
later gonna try retroarch to play some wii game.
ps: dolphin need sideload, so i temporary gv up.

6. no vga support, i can't use my htpc.
mayb next week gonna upgrade my graphic card. (low profile)
cheapest 4k card i found zotac gt710 2gn ddr3,  rm179
but there is another sapphire r5 230, rm149... but dont think can blast 4k video

7. no audio in also, so i hv to buy spdif optical connect to my amp 😒