I, too, have my service bundled with AT&T services...and am happily using the sling guide. I signed up for it on the sling guide website while it was still in beta... is it no longer able to be done that way?
Your still able to use the Sling Guide but I have never been able to view my programs on my DVR and I have always been told that. But I read somewhere that you are suppose to be able to watch your DVR programs from the Sling Guide web site but I don't see where you can.