Hi, I'm not going to go into specific models but would just like to offer my understanding. Either HDMI 2.0 or HDMI 2.0a is fine where HDR support is concerned. However, i would advise you go for a TV equipped by default with HDMI 2.0a ports for added peace of mind. There's talks about future fw being able to upgrade a port from HDMI 2.0 to 2.0a but ........ better get from the start than hope for fw update that might break things.

Lastly, since you asked about signals pass-through from other devices. I strongly suggest you concern yourself with HDMI 2.0a inputs with HDCP 2.2 support. The latter is crucial as more and more legit content are being protected. Example, you have a device or service that’s HDCP 2.2-compliant and is trying to send protected 4K signals to a non-HDCP-2.2 4K TV. The non-HDCP-2.2 4K TV would most likely show a blank screen. To make matters worse, non-HDCP-2.2 devices can’t simply be upgraded to support HDCP 2.2, because specific hardware is required. So for for future-proofing, ensure HDCP 2.2-compliance.

I've checked the Sharp website and it doesn't seem to state if the 4TC50AL1X is HDCP 2.2-compliant or not. So perhaps other owners in here could help check behind their TVs, if it's listed there, beside the ports.. Thanks.

it is unclear if the ah1x hdmi 2.0 can handle hdr10 as there are tv's that can, with the right firmware.

but the fact that it has only 2xhdmi 2.0 whereas al1x (and ua6800x) have 2xhdmi2.0 + 2xhdmi 2.0a says something.

i know the hdmi2.0 in my ua6800x cannot do HDR properly.

ah1x, i would think either it won't work with HDR (washed out video, weird colors) or it will work but "less" dynamic range... and maybe limited to 8bit, chroma 420??

the info says "HDR" - this may be referring to HDR in youtube and netflix only, not input from other devices via hdmi.

to be sure, i would think u should go for al1x unless an actual user can confirm.

this is the problem... hdcp is a global std but HDR is not.

"hdr" is an open thingy.... everybody is free to claim what they can do or not do... there is no common regulated std adopted yet.

"al1x supports hdmi 1.4" probably means it is backward compatible, that's all.

knowing these TV's as much as i do, al1x is hdcp 2.2, no worries about HDR10.

ah1x, ah8x... i hv doubts... they may be able to do "some" HDR... u may be at the mercy of the originators of the source.

seriously, unless RM300 is going hurt u bad, there is no good reason why u want to take such a risk and potentially get upset later.

ah1x/ah8x, to me, is meant for those who dun care about HDR, 4k, youtube, netlfix4k, ATV... just SD or at best 1080p will do.

moreover, we r talking about rm3k... not rm8k, 10k... that others are rushing to spend on "the latest and the best"!