Playing other video formats on my ATV
Is there a way to add extra codecs for watching avi, etc., that will allow me to treat videos in those codecs just like movies on an un-hacked ATV? That is, can I add the codecs to the ATV (perhaps by installing Perian) and then drop those types of videos into iTunes, have them synced to my ATV, and then play them from the native ATV "Movies" or "TV Shows" menus? That is, I want to treat the files just as MP4 movies I add to my iTunes library.
I want to be able to watch TV show torrents from tvRSS using Automatic and Transmission to download them. I don't want to convert to MP4 and I don't want to use Boxee, etc.
If so, are the steps to enable ssh then add the codecs to the appropriate places?