I have my doubts
I was looking around on the net today, checking out the different brands, when I came across a set with a price and features that looked too good to be true.
I won't list the store name here per the forum's rules - the owner makes the rules; that's the way it is, and that's the way it should be, IMO.
This dealer (I don't know the store) is listed as being an Authorized Sony Diamond Dealer. The following is from their website.
Sony X900 Series
Full HDMI 2.1, 48Gbps
New slim wall mount ready
ATSC 3.0 tuner built in
Early May launch
The set's were 85", 75", 65", and 55" models. All of the screen sizes had a pdf spec sheet, except for the 85" model.
I clicked on the pdf spec sheet for the XBR75X900H.
In the TV System section, there was NO 3.0 tuner listed!
In the Inputs and Outputs there was this:
HDMI Signal = 4096x2160p (24, 60 Hz), and 3840x2160p (24, 30, 60 Hz).
4K 60p HDMI in1, in2, in3, in4 ports for 4K (up to 18Gbps) signal. This is 2.0, correct?
These specs are clearly listed as the actual specs for the 2020 75X900H model.
After reading this, I called the store and talked to a guy there. He insisted that the set had a 3.0 tuner and that all 4 (!) of the set's HDMI inputs were 2.1.
I couldn't find any spec sheets for the X900H Series sets on Sony's site, or anything about a launch date.
I bet that these sets won't have true/full HDMI 2.1, just an upgrade for some of the features of 2.1 for gamers.
Hopefully, I'll lose that bet.