Ability to get files on ATV via USB

I’d like to see a way of getting content onto apple TV without syncing.

For the odd file or 2 it is ok but I’d like to be able to plug the external HD into my mac and copy over the files or if possible fool my mac into thinking the external hd is apple tv so it can sync by usb. Must be possible surely?

Wifi is fast but not fast enough and if I ever had to re-sync all my files it would probably take about 4 years!