Reproduction steps:
1. Open attached project "New Unity Project.zip";
2. Make sure that 'Anti Aliasing' is on in Quality Settings;
3. Make a build for AppleTV and run it.

Actual results: Screen is black and XCode console reports an error in every frame:
"Execution of the command buffer was aborted due to an error during execution. Ignored (for causing prior/excessive GPU errors) (IOAF code 4)"

Reproduced on: 2018.2.0b1, 2018.2.2f1, 2018.3.0a8.
Not reproduced on: 2017.4.8f1, 2018.1.9f1.

Not reproduced with OpenGLES or iOS.