Roku is investigating user-reported issues of washed-out colors when streaming HDR content, particularly on Disney Plus, following a recent software update. Initially reported on TCL TVs, the problem has expanded to other brands like Hisense, affecting multiple streaming apps such as YouTube TV and Netflix, while HDR via HDMI appears unaffected. Roku has requested community input to diagnose the issue, which seems to produce desaturated images across various devices.