Apple TV will not work

You would need to use the iTunes application to watch iTunes Store movies (buy or rent) on a Windows PC.

You would need to use the iTunes application to externally restore the Apple TV box system software through a Windows PC.

You would not need the iTunes application to watch iTunes Store movies on third party devices with the ‘full’ Apple TV app on supported devices.

You would not need the iTunes application to watch Apple TV+ in the Apple TV app.

You would not need the iTunes application to watch Apple TV+ content on the web.

You would not need the iTunes application to set up or manage an Apple ID account, although it might be very convenient.

You would not need the iTunes application to reset the Apple TV box system software if you can still access the menus.

List of Apple TV app-supported devices - Apple

Get the Apple TV app or Apple TV+ app on your smart TV or streaming device - Apple Support

All the ways to watch Apple TV+ - Apple Support