The company expects to roll out both HD and 4K Ultra HD models in a variety of screen sizes this fall.
Roku's licensing program, which launched in 2014, has yielded more than 40 smart-TV models available in the U.S from five TV brands. Including the new models from Hitachi, Roku expects to have 60 different TVs running the Roku OS by this fall. Currently, Roku TVs account for 8 percent of the U.S. smart-TV market, Roku said.
Roku TV models are currently offered in HD and 4K UHD resolution with screen sizes ranging from 24 to 65 inches.
“Roku offers us everything we need in a smart-TV solution — a cost-effective way to produce great TVs that run a powerful operating system, access to a compelling streaming channel store and software features that make it easy for consumers to find and discover entertainment,” said Bill Whalen, Hitachi director. “We couldn’t be more excited for the launch of Hitachi Roku TV this fall.”