There's a quote in one of the team summit threads where Charlie indicates that's it's limited to PTAT by choice and that it could be expanded to other programming at a later time.
My first thought when I experienced my first Auto-Hop recording was, "This is a HUGE game-changer!" My second thought--"When will the first lawsuit be filed and it be taken away from us while it rattles around the courts for years?"
"Interestingly, the Auto Hop is only being offered for use on broadcast networks and not cable channels such as TNT, USA and FX. A Dish representative said more than half of all recorded programs are broadcast shows and that there are no plans to offer the product for cable as well, although the technology would allow for that. Cable channels typically have heavier commercial loads than broadcast television."
So, bottom line, it's currently being limited to PTAT with no expansion plans, but Dish could expand it to other broadcast programming in the future.