Welcome to the Roku Community, @Ron20!
Thanks for letting us know about this. We'd be happy to share some steps to help you get back on streaming your OTA Live TV channels.
Before we proceed, could you please let us know which specific OTA Live TV channel is affected by this? In the meantime, kindly try to reboot your Roku TV under Settings > System > Power > System restart.
Keep us posted on how it goes and we'll go from there.
Best regards,
Carly
Carly Y.
Roku Community Moderator