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Comcast’s Xfinity X1 customers can access Netflix’s more than 1,200 hours of content in Ultra HD 4K content — including original series like “Stranger Things” — through their cable set-top.

The cable operator announced that Xfinity customers who have 4K-capable X1 devices can now browse and stream Netflix 4K movies and shows. Those include original films, documentaries, specials and series such as “The Crown,” “Narcos,” “Orange Is the New Black,” “Ozark,” “Mindhunter,” “Okja” and “Marvel’s Daredevil.”

Access to Netflix’s Ultra HD content requires a “Premium” subscription, which now costs $13.99 per month after the company raised prices in the U.S. Netflix recommends an internet connection speed of at least 25 megabits per second to stream 4K titles.

According to Comcast, Xfinity X1 customers will need the XG1v4 set-top box to access Netflix in Ultra HD. If a movie or TV show is available in 4K, the default playback will be in 4K.

Comcast first launched support for Netflix in November 2016, as part of its strategy to be the “input A” provider for all video-related entertainment to customers. The operator added YouTube to the X1 platform last month.

Comcast plans to “continue to rapidly expand the UHD programming choices available on the platform,” according to Brynn Lev, Comcast Cable VP of editorial and programming, content strategy and operations.

In the future, Comcast plans to support search and discovery of 4K content on X1 with the voice remote, as well as curated collections within Xfinity On Demand, and the option to choose a playback method (i.e., in 4K or HD) by program.