Designed this for my Dad who wanted to mount the Apple TV onto the rear of his TV.
Whilst designed for the 1st/2nd gen 4k, it should fit the 3rd gen fine as well as its only smaller, it just won't be as snug.
You'll also need some M4 screws to secure the mount to the TV, I had some M4x8mm which worked fine, but be careful especially if you have a thin TV/panel.
I did print it as shown in the 3MF file to avoid printing supports in the enclosure.
Printed fine in PLA although would recommend PETG for something a bit tougher. Print with organic/tree supports for the lower third of the model if you're printing it the way shown in the 3MF file.
Accidentally made this as I only measured one side but later found out it was 200x100 and not 200x200, you can find the 200x100 design here
STEP file is included if you wish to modify it
The author marked this model as their own original creation.