A:Answer Hi Josh, Thanks for the question. Both the A80K and A90K Series are released this year. The A80K is available in 55, 65 and 77 inches while the A90K is only available in 42 and 48 inches. Yes, the supplied remote controller is different from each other. The A90K comes with the premium model while the A80K has the standard version. The A80K has a bit of advantage when it comes to stand positioning since you can set it up to a narrow setting. As for the pricing, it is up to the dealer. Kindly visit the links below. This links contains all the information you need about the two models which can really help you decide which model to go for.
https://electronics.sony.com/tv-video/televisions/all-tvs/p/xr42a90k
https://electronics.sony.com/tv-video/televisions/all-tvs/p/xr55a80k
Hope this helps,
-Craig
