Don't know how to record the show from the beginning if it has already started but you can start recording at the point it's playing. While watching the show press the back button and you will go back to your previous program; once there press the back arrow again and you will return to the show you want to record. a record screen will appear but do it fast as it won't be available long.
Hi @dan11341,
Welcome to the Roku Community!
We understand you're having trouble recording. We're happy to help. Please try to restart your Roku by going to the settings, system, power, and system restart. Let's try to see if that fixes the issue that you're experiencing.
If the problem still persists, please keep us posted.
Best regards,
John