Hello all, I have had my PQ65 for over 6 months now. I love the picture of the TV (especially for the price point). However, I am struggling with the "cooperation" between the TV and my AppleTV 4K. Please note, this is my second PQ65 as the first was replaced due to a coil hum. I am getting to a point where I am fed up with these issues and am considering returning it.

1. HDMI 1 does not play my AppleTV in Dolby Vision (DV). When moving the same HDMI cable into HDMI 2 or HDMI 3, the content will play in DV as expected but not HDMI 1. My first TV did the same thing except it was HDMI 2 that would not play DV content and HDMI 1 that would (I have been using Monoprice cert. HDMI cables since day 1).
2. When initially selecting content on Netflix, the lag between pressing the button and actually playing the content could be up to 10 seconds. Often I am met with a black screen and the Vizio TV info bar will flash a time or two.
3. When selecting content on Netflix, as soon as it starts to play, the content is automatically paused (about 80% of the time). It does not do this with Hulu or Amazon video via ATV4K
4. Today, I purchased a subscription to HBO NOW. When I tried to play content on HBONOW, the menu worked, but as soon as I selected my show, the ATV and TV stopped displaying content and started displaying "No Signal." I had to uninstall/reinstall the app twice in order to eliminate this (plugged the ATV into another 4K DV TV and had 0 issue with it playing, ie. it was the TV).
5. CEC with ATV can cause the TV to go crazy. I am using a sound bar (connected through audio optical) and when I turn the TV on from off, then turn on the ATV, the TV might freeze or even turn off.

From reading post after post, it sounds like a lot of these posts are about similar issues (albeit, the 1.6k community has to be a small subsection of Vizio customers).

1. Does anyone have any advice on how to fix these issues?
2. Has anyone successfully requested a refund through Vizio? If so, how?
3. Does anyone have any similar issues with competitor TVs?

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Thanks in advance!