[wrxtasy]

Maybe another one for @Tinwarble in Page #1....

ALL Android media players (excluding FireTV2), cannot App - Auto Resolution switch 1080p/4K based on the source video content being played.

Play around with a Android system Screen resolution of 1080p, and compare 1080p content upscaled to 4K by your projector/TV and then
set an Android system Screen resolution of 4k2k and again compare the 1080p > 4K video content upscaled by the Shield.

Then pick the best looking picture output and stay with that Android system Screen resolution for 1080p content.

Generally leave Android system Screen resolution at 1080p unless you are viewing 4K content all the time.