If you have neither and are looking to be a new customer with both, I'd probably go to an AT&T company owned store (not authorized retailer) and hope they are able to do it successfully.
Lots of stories of messed up accounts when combining, hopefully they have the ability to do a new account for both by now, but alas, it has not been a comfortable merger in many ways.
This is true.
I've been very frustrated since the merger as there seems to be no communication. My Directv contract runs out next month and even though they have given me several credits I may go with Cricket wireless and Vue tv. This would cut my combined bill in half. I'm going to wait for Directv Now to roll out to see what they have to offer.
I was considering same. You can get a free iphone7 if you switch to ATT wireless and have D*.
That offer ends at EOM. The ATT store will have all the details.
DO NOT COMBINE BILLING. Even the ATT rep told me it was a DISASTER.