Recent owner of a 82Q90R and spending time with the settings.
Tivo, Oppo to Marantz AV7702mkII. AV7702mkII to one connect box HDMI 1. Harmony remote controls everything.
When powering everything on, example Blu-ray, the Q90 screen starts black, then a blue spinning wheel. When comparing with the LGC9 next to it, the Q90 takes too long to get the picture up and running. The C9 shows everything instantly, example the WB logo where the Q90 takes so long it may not show the logo. When Youtube is playing though the tivo, the Q90 has the spinning wheel, or no spinning wheel but no picture for a moment or two, then the picture. Never a problem for the C9. Sometimes when watching short youtube videos (2-3 min) and I let it automatically continue to the next video, the Q90 will disconnect, no video no sound. Not so with the C9. I don't want to use the hub to connect the oppo, tivo, use the tv's apps (Youtube) and use ARC to get the sound back to the processor. ARC will not do Atmos, DTS. I'd like my processor to handle everything. No problems with any other tv I've had. Q90 is having handshake issues and it's beginning to look like a deal breaker.
Are others having these issues? Is the problem the hdmi 1 jack on the hub? I could try the other 3, but tv is wall mounted and not easy to make changes.
Here's one tweak I found helpful. When watching anything that has complete black extending to the borders of the tv, the 1/4" grayish frame border will show that's the edge of the tv. I applied a 1/4" black pinstripe tape to the inner beveled edge only, not extending to the side edge of the tv. Now when blacks extend to the edge of the tv, the black disappears into the dark room. Just like the C9. Picture is more immersive when there isn't a border showing a rectangle.
7.2.4, AV7702mkII, MM8077, MC205, UDP-203, 82Q90R, Tivo Bolt, Richard Gray 400s, B&W Nautilus, Fathom F113, Harmony Elite