Welcome to the Roku Community, @Bobbydann!
Thanks for reaching out about the missing channels on one of your Roku devices. We'd like to offer further information about this.
Depending on where you live, you may be able to receive free "over-the-air" TV broadcasts from nearby TV stations using an HDTV antenna. The placement of the HDTV antenna can affect which TV stations you may be able to receive and the quality of the TV signal.
It is normal for the initial channel scan to take a while. Visit Antenna Web to learn more about HDTV antennas and how to access "over-the-air" TV in your area.
Furthermore, please be informed that we don't have access to how your antenna receives available Live TV channels.
Feel free to visit our support article dedicated to this: How to set up and watch live TV on your Roku TV system
We hope you find this information helpful.
Best regards,
Carly
Carly Y.
Roku Community Moderator