The problem My Hisense remote died last year and I went down a small rabbit hole trying to find a single iOS app that worked across all the Hisense smart-TV variants. Turns out Hisense ships four entirely different smart-TV operating systems depending on the model, each with its own pairing flow and command set: VIDAA U6/U7/U8 — Hisense's own OS, the most common on the global market Roku TV Edition — sold mostly in North America Google TV / Android TV — A-series and some U-series Fire TV ...