T-Mobile USA CEO John Legere announces Binge On. (credit: T-Mobile USA)

One of the biggest selling points of AT&T’s DirecTV Now service is that it streams video without counting against data caps on the AT&T mobile network. But T-Mobile USA customers will also be able to watch DirecTV Now without using up data, the carrier announced yesterday. DirecTV Now is one of the latest services added to Binge On, which exempts dozens of video services from data caps as long as customers are willing to limit mobile viewing quality to about 480p.

T-Mobile also promised to reimburse customers for DirecTV Now for 12 months if they port a phone number from the AT&T network to T-Mobile and purchase at least two lines. This offer consists of a $35 monthly bill credit, enough to cover the DirecTV Now promotional price. This is a limited-time offer and cannot be combined with other offers like “Carrier Freedom,” which reimburses customers for early termination fees when they switch to T-Mobile.

Customers who want the $35 monthly credit must sign up for the new $70-per-month T-Mobile One plans, which have no data caps but impose limits on video resolution and mobile hotspot speeds unless subscribers pay extra. The Binge On data cap exemption is only necessary on other T-Mobile plans that have monthly data limits.