Apple updates tvOS to 11.2, adds live sports & video display mode switching
A few days after the emergent release of iOS 11.2, Apple has wrapped up the beta testing and has made tvOS 11.2 for the fourth generation Apple TV and the Apple TV 4K available to all.

The most notable change is the addition of the Sports section to TV. The "Sports" tab joins the previous options of "Watch Now," "Library," "Store" and "Search." It features quick links to live games and the ability to rewatch games that already occurred.
Users can also select their favorite teams for a range of sports and leagues. The TV app promises users that they will receive an alert when the team is about to play, letting users begin streaming as soon as the game starts. Supported leagues include Major League Baseball, the National Football League, the National Basketball League, college football, men's college basketball and more.

Other, less obvious changes include video display mode switching to match the frame rate and dynamic range of played content, and some user interface refinements.
The tvOS 11.2 update is available either as an automatic update, or manually through the Settings app on the Apple TV itself.

The most notable change is the addition of the Sports section to TV. The "Sports" tab joins the previous options of "Watch Now," "Library," "Store" and "Search." It features quick links to live games and the ability to rewatch games that already occurred.
Users can also select their favorite teams for a range of sports and leagues. The TV app promises users that they will receive an alert when the team is about to play, letting users begin streaming as soon as the game starts. Supported leagues include Major League Baseball, the National Football League, the National Basketball League, college football, men's college basketball and more.

Other, less obvious changes include video display mode switching to match the frame rate and dynamic range of played content, and some user interface refinements.
The tvOS 11.2 update is available either as an automatic update, or manually through the Settings app on the Apple TV itself.
Comments
4.2.2 is a lesser compressed video signal and even though Apple TV checks my cables before making the changes and then permits the change based on its own test, I get static and interruptions on my signal once every couple of minutes.
I’m running Apple TV through a high-end Denon 4K receiver and using quality HDMI cable‘s .
In order for HDMI cables to be stamped as such, they must pass the HDMI specifications; so I'm not too worried about the HDMI cables. I would encourage you to take quick peek at the Denon website (https://usa.denon.com/us/support/home), assuming you reside in the USA, and verify that there are no software updates for your receiver. You may be pleasantly surprised. That said, if those two solutions do not solve your problem; I would lay this at Apple's feet. Their software quality, as of late, as been questionable, at best.
I’m vary curious about the deal Apple and Amazon reached but we’ll probably never know.
I dunno, unless there are enough people like me to make it worth it.
In our house, KISS is the guiding principle for all entertainment and productivity setups. We settled on the Apple ecosystem as a way to centralize and manage all our entertainment and personal data files. It's not perfect, but it offers a lot of integration and data management in a way that everyone in the house can use it without having to be "trained."
Amazon keeps trying to get me to subscribe to Prime, but I don't want to until it works with our existing framework. If I have to add hardware and source setups, the hassle starts to outweigh the benefit. Making Prime work with our existing equipment would gain Amazon a subscriber.
I have no idea if anyone else is as stubborn as I am, but if enough others are, that would be Amazon's incentive to make their service available on Apple's platform. It's probably not a big deal for Amazon, as I can't imagine they're making any money on their own hardware anyway.
Christmas is too late to launch it, and someone pointed out that Apple apparently closes shop between Christmas and New Years, so if we don't get it next week, then we're probably not going to get it until January.
amazon has said they're going to support ATV 2, 3, 4 and 4K. Likely 2 & 3 have been ready to go for sometime, and Apple is holding those back pending the 4K version (why would Apple want to give customers a reason not to upgrade to a 4/K?), so at this point my money is more on Apple's delay than Amazon's.
My prediction now is next week. That gives Apple and Amazon both a week to address issues worldwide before the Christmas shut down, and ensures plenty of binge watching. Christmas gifts will have already been purchased by next week, with most electronics picked up on Black Friday -- Cyber Monday. At $200, the ATV 4K is not likely to be a stocking stuffer, so little danger of competing with last minute Amazon Fire sales, especially with Amazon supporting the ATV 2 & 3, giving many Apple customers no reason to upgrade at all.