I wasn't sure what the reference to a 30" screen referred to. Is there a reason for mentioning it? The Mac mini sounds like a good option.

Is there any technical advantage of an Apple TV over a new Mac mini (excluding price)?

Cheers
Tom

Main: G61SL, 218, HD621, 2*7200SE, 7200HCSE, M6s, DSW, Apple TV 4K, NUC (Roon server)
Secondary: Wiim Pro, 3200, Audio Core 200
F80