Sounds like a bug in the Roku software. I'd contact Roku tech support via email, take pics with your smartphone if they don't believe you.After rescan lost 8,19,43. I had both stations the night before. Checked antenna, made adjustment nothing. Fired up TIVO, off same antennna, and both stations there. Signal is low on TIVO, very strange. My guess ROKU updated software and now issue, the screen is white now....Did anyone ever see this issue???