Apple TV interface low res - plays 4K content fine, though
Well, this is a weird one. I have a brand new Apple TV connected to a brand new Samsung 'The Frame' QLED 4K UHD TV, but the ATV interface is really low res. For instance, the icons showing content look like cartoons instead of actual photos. But when any video content plays, it looks great - very sharp and high res.
Here are two pics, showing one of the featured thumbnails for 'What to Watch' for TV and a movie suggestion for iTunes Movies - both from the home interface. I have two other Apple TVs attached to other TVs in the house, and even though they're older, they don't have this issue.
The third pic is an image of a streaming TV show (Grantchester - I think via Prime Video). Sharp as a tack.
Anyway, any idea of what's going on here?
Apple TV 4, tvOS 12