I have a 40gb hard drive but much larger storage on my mac. I wanted to stream shows in alternative formats to the apple tv but I don’t seem to find a way to do this. SO, I have followed advice on this link:

This small change to the video allows me to sync all file types on the normal interface for apple tv. The flash drive allows this to work by installing the necessary codecs.

If someone has a better way to stream their media files, then let me know!