Netflix, looking to drive more subs to its top-tier $11.99 monthly plan, said it will add more than 150 hours of programming in high dynamic range (HDR) format — including the entire Marvel street-hero series from Disney.

The streamer said it will top 100 hours of HDR programming by August, with more than 150 hours slated by the year end. To watch the content in HDR, subscribers must be on the four-stream plan at $11.99 per month, which also provides access to 4K Ultra HD titles, and have a 2016 Dolby Vision or HDR-enabled television set.

While 4K Ultra HD offers about four times as many pixels as 1080p HD, HDR offers greater color range, brighter highlights and more detail in dark scenes for more realistic-looking images.

“It wasn’t so long ago that online video meant grainy quality and constant buffering, but today the Internet is the home of the best possible video you can get thanks to Ultra HD 4K and HDR,” Netflix chief product officer Neil Hunt wrote in a blog post announcing the initiative.

With the move, Netflix is playing catch-up to Amazon, which has offered content on Prime Video in HDR for about a year. Amazon’s Prime Video has approximately 100 hours of HDR content today and says it plans to double that by early 2017. The e-commerce giant this week launched an aggressive new challenge to Netflix with a standalone pricing option for Amazon Prime Video of $8.99 monthly, which includes HDR and Ultra HD content.

Netflix currently offers the first season of original series “Marco Polo” in HDR format. Additional titles the streamer has slated to be added in HDR include: Adam Sandler’s “The Ridiculous Six” and “The Do-Over”; “A Series of Unfortunate Events”; “Bloodline”; “Chef’s Table”; “Hibana”; “Knights of Sidonia”; and Marvel’s “Daredevil,” “Iron Fist,” “Jessica Jones,” “Luke Cage” and “The Defenders.”

To stream HDR programming, Netflix recommends a broadband connection of 25 megabits per second or faster.

Dolby Vision, the company’s HDR implementation, is currently available on LG and Vizio HDR televisions, as well as Netflix and Vudu streaming platforms.

Pictured above: “Marvel’s Daredevil” on Netflix