DirecTV Now (separate from traditional DirecTV) is offering a free Roku Premier when you subscribe to any plan and prepay 2 months. The cheapest plan is $35/month so $70 total. You can also get up to $25 off per month if you’re an AT&T Unlimited Plus subscriber.
To get the offer, start at www.directvnow.
The Roku itself retails for $69.99. Supports Wi-fi and 4k video and has a quad-core processor.