If a TV comes with Apple TV do you still need to purchase the Apple TV 4K box as well to use zwift through the tv, or can you just run it through the app on the tv?

(asking for a friend)

The Apple TV app is just an app that allows you to watch their content.

You need the box to run Zwift but there’s something about it only allowing two BLE connections?

Thought that might be the case.

Not sure about the BLE connections though

You can connect more BLE devices by going through the companion app on your phone.

Apple 4K tv has 3 BT connections & the remote takes 1 which leaves 2. If that’s all you need fine – but additional BT connections can be made through the Companion App on your phone – which works but is a bit of a faff. I think some HR monitors (4iiii?) can also act as BT bridges.