Another step forward for EPIX in its campaign to persuade pay TV distributors to add its suite of premium channels to their line-ups. Per usual, this morning’s release doesn’t disclose the deal terms for AT&T‘s agreement to offer its 5.7M TV customers EPIX, EPIX 2, EPIX 3 and EPIX Drive-In. The package will cost $8 a month following a free preview over the July 25 weekend. EPIX — which is owned by Viacom, Lionsgate, and MGM — trumpets its large library of movies. It says that its subs on AT&T will be able to stream more than 3,000 titles via EPIX.com, its EPIX App, EPIX VOD and live feeds of the channel on Uverse.com and the U-verse apps. AT&T “holds innovation and the consumer experience in the highest regard and we are very pleased to embark on this new relationship,” EPIX CEO Mark Greenberg says.

EPIX, introduced in 2009, has been making steady progress in winning over pay TV companies who initially stiff armed the service. Time Warner Cable picked it up in March, and Bright House agreed to do so in June. It still isn’t carried by Comcast and DirecTV, the biggest cable and satellite companies. But today’s deal with AT&T could change that: The telco plans to buy DirecTV.