@solderandchaos as far as I'm aware tvOS, which is what does the nice set top box stuff, isn't available for Apple computers, only Apple TV, so you'd basically be in the same position as DIYing something. With Apple TV proper, it comes with a remote control, but you can also use your phone.
@solderandchaos just to clarify, because Apple are awful at this, Apple TV the subscription video service is different to Apple TV the set top box. (Although to add to the confusion, you can use Apple TV on your Apple TV).