Apple TV 4: any way to downgrade software without USB cable?

[NewtonMP2100]

.....the Apple TV will still periodically pop up reminder asking if you want to change to 'update automatically'.....easy to accidentally click 'ok' on remote.....happened to me twice when i wasn't paying attention and was just trying to wake the Apple TV from sleep......quickly pulled the power cord on the Apple TV and shut off router so download would be interrupted.....

.....then turned on Apple TV with internet off....and luckily didn't have time to update....so saved it....but pay attention when clicking on the Apple TV....