I just picked this up Friday afternoon as soon as Walmart lifted the no sale flag. This is my first Android TV box so I'm getting used to how it works. Under Settings -> Video the default resolution is 1080p. When I tried out the auto setting, it wanted to use 720p so I quickly turned that off. Right now I have it set to 4K-smpte. I have a Samsung 4K TV but don't really know what the best setting should be. Any suggestions on how to tell?
Does it always run in 4k60hz, because I thought the Fire TV was quite smart that it runs at 1080p and only switch to 4K when 4K content is playing. Which allows the TV to upscale 1080p content natively.