Thanks for solid, quick response. So, in theory I could transfer my purchase iTunes movies to the TiVo? If yes, I am assuming that I could by a large external drive for the TiVo to store the movies?
I don't know much about copy-protection issues with iTunes DRM, but it seems reasonable to assume that Apple won't allow you to freely use those movies wherever/however you want. I think you may be limited to watching them on your "authorized" computers and Apple devices. So that well be a non-starter...
But, jumping ahead with the
BIG assumptions that you've set up, say, a PyTiVo server
and you can successfully transcode those files, I want to clarify an important point regarding your external drive comment. TiVos can use an eSATA expander drive, but they treat it as part of a single larger storage space. You can't use it just for your movies, or use it selectively in any way...recordings are spread over both drives (internally by the TiVo) such that you can lose everything if it fails or is removed. And only the TiVo can record content to it, so you can't pre-load stuff on it or anything like that.
Honestly, you've already got the easiest way to watch your iTunes movies on your TVs, so I'd recommend you just stick with that. Apple TV is designed to do this, and there's no option for watching them from your Roamio (streamed or downloaded) that will be nearly as simple and troublefree as what you're doing now. (And again, DRM may not allow it anyway....)