A VIDAA OS-powered smart TV on display at the StreamTV Show in Denver. Roku continues to be the platform found in most homes, with a 37 percent share of smart TVs, while Amazon’s Fire TV accounts for 17 percent, according to Hub. Both platforms ranked ahead of Android TV, Samsung’s Tizen, LG’s webOS and Apple TV. (Chart courtesy Hub Entertainment Research)Viewers increasingly experience television through app-based home screens rather than conventional channel guides, Hub noted. By refreshing its home screen, Roku is tapping into the primary menu that users turn to when looking for new things to watch, Hub notes.