I'll definitely take a look! I'm month to month with my Plex Pass for now, but I'm not wedded to it and there's some really annoying and clunky UI things about it. The comparison is unfair but it's going to be difficult to go from Tivo to anything else, even with the annoying changes they've made to their UI too.
But yes, I'll give Emby a try. Anyone else have recommendations? Basically it just has to support Apple TV and be able to use a Synology as a DVR. One thing I've been playing with and like about Plex is the automatic commercial removal, which so far has worked pretty darn well...
Side note: what is it with streaming media and "Big Buck Bunny?" It's like the defacto sample video for some reason. I know I've seen it on another box I tried, which is making me wonder: is Emby the grandchild of Boxee?