Gearing up for the holiday buying season, RCA has launched its first lineup of Roku-powered smart TVs that also support 4K resolution.

The top of the line is a 65-inch model with an MSRP of $1,099, and is followed by a 55-inch model for $699.99, and a 50-inch version that costs $599.99.

RCA said the new 4K Roku TV models are being sold at Walmart stores and via the retailing giant’s online sales channel.

RCA, which announced its Roku TV partnership in January, introduced several HD Roku TV models over the summer.

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RCA said its new 4K Roku TV models will get the get the latest software version, Roku OS 8, by year-end. That version includes a new Smart Guide that weaves together OTT content with TV signals that are captured over-the-air, as well as a single sign-on capability for a range of authenticated TV Everywhere apps from programmers.

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Roku, which launched its IPO in late September, also works with several other TV makers, including TCL, Element Electronics, Hitachi America, Haier America, Sharp, Insignia (Best Buy’s in-house brand), and Hisense. Though Haier is pivoting to a platform powered by Google’s “Chromecast built-in” platform, Roku has pledged to continue supporting and providing software updates to Haier smart TVs that use Roku’s OS.

Roku is broadening its push into the smart TV market after inking a licensing deal with RCA.

The deal, in conjunction with Display-Vu Group, an affiliate of Curtis International, will see RCA start to offer Roku-powered HDTV models sometime this summer in the U.S. and Canada.

Outfitted with Roku’s operating system, those TVs will provide access to Roku’s array of more than 5,000 streaming “channels,” and a library of about 450,000 movies and TV shows, they said. RCA TVs are manufactured and distributed in the U.S. and Canada by Display-Vu Corp.

The deal also marks a shift of allegiance for RCA, which has also been working with Android TV.

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RCA, a brand now owned by Technicolor, joins a growing roster or Roku TV partners. Others TV makers with Roku licensing deals include Element Electronics, Hitachi America, Haier America, Sharp, Insignia (Best Buy’s in-house brand), and Hisense. Of that group, Haier is pivoting to a platform powered by Google’s “Chromecast built-in” platform, but Roku has pledged to continue supporting and providing software updates to Haier smart TVs that use Roku’s OS.

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Citing shipment data from IHS, Roku has previously held that Roku TVs accounted for 13% of all U.S. smart TV sales, or one out of eight smart TV purchases, citing new TV shipment data from IHS.

“RCA is an iconic brand with deep roots in the living room. Consumers love the brand and as we combine that with today’s modern streaming approach, RCA Roku TVs are sure to be a favorite this year,” Chas Smith GM of Roku TV and players, said in a statement.

Roku said recently it had 14 million “active accounts” as of March 31, 2017. The privately held companypulled in nearly $400 million in revenues for 2016, with $100 million coming from its media and licensing division.