Hi, Eugene1.
Greetings from the Roku Community!
Thanks for reaching out and for letting us know about this. No worries! We'd be happy to review the missing channels on your OTA Live TV Guide.
This is most likely because your router's Wi-Fi may be interfering with the particular over-the-air channels. In cases like this, we highly recommend reading out to your internet service provider to help you change the wireless channel on the router and see if this helps.
Please keep us posted on how it goes and we'll go from there.
Best regards,
Carly
