2 months ago Expands Roku TV Ready Program Further in U.S. and to International Markets SAN JOSE, Calif.–(BUSINESS WIRE)–Roku, Inc. (Nasdaq: ROKU) today announced that Roku® OS was the No. 1 smart TV OS sold in the U.S. and Canada according to NPD’s Weekly Retail Tracking Service. Roku TV™ held 38% of market share in the US and 31% in Canada, based on available data from January 5 through December 26, 2020, maintaining the lead spot in both regions.* In North America, millions of Roku TV models were sold across thousands of retail stores offering consumers hundreds of models to choose from in a range of sizes and picture quality options — from 24-inch HD to 75-inch 4K HDR models.