Your going to have to sign up for yourself and learn a lesson like I did. I signed up three times. One time at SAMs, one time with direct over the phone and then over the Internet. Direct tv couldn't stand by their deal once. I rescued two installs because the installer had a different package than what I had ordered. Complete disaster.
If you are thinking of bundling forget it. None in the att store knows how that works. They are selling the thing under the impression the price is locked for two years.
On the direct tv side - try getting a straight answer. That's not going to happen.
I ended up with dish. The Macintosh computer of satellite.