First up, let me point you to a SageTV thread that has a couple of interesting tidbits but are lacking serious details.
In this post, Andy (Opus4) states that Sage is at the Echostar booth. I wonder what Sage has up their sleeve, perhaps a partnership with Echostar?
In this post, Narflex hints at support for Hauppage’s upcoming component capture card.
In this post, another SageTV forum goer went to the Hauppauge booth and found out information about Hauppauge’s upcoming capture card. Priced at $250, this analog capture card should allow you to capture any component feeds. It sounds too good to be true.