To resolve the issue of the Newsmax broadcast playing in Spanish instead of English on your Roku device, follow these steps:

1. Check the Language Settings in Roku:
- Press the Home button on your Roku remote.
- Navigate to Settings.
- Select Accessibility.
- Check the Audio Guide and Captions settings to ensure they are set to English.

2. Change the Audio Language within the Newsmax Channel:
- Open the Newsmax channel.
- While the channel is playing, look for an option to change the audio. Some channels may have an audio menu available when you press the Star () button on the remote.

3. Restart the Roku Device:
- Sometimes, simply restarting your device can rectify audio issues. Press the Home button, then navigate to Settings > System > System Restart.

4. Uninstall and Reinstall the Newsmax Channel:
- If the issue persists, consider removing the channel and reinstalling it:
- Go to your Home screen.
- Highlight the Newsmax channel and press the Star () button.
- Select Remove channel.
- Once removed, go back to the Channel Store and reinstall the Newsmax channel.

5. Check for System Updates:
- Go to Settings > System > System update to ensure your Roku device is running the latest software version. Updates can often fix known bugs.

6. Use Web or Mobile Alternative:
- If you cannot resolve the issue, consider using the Newsmax website or mobile app as an alternative way to access news content in the desired language.

7. Contact Roku Support:
- If none of the above steps solve the problem, contacting Roku support for further assistance may be necessary. They can provide specific troubleshooting related to your device.

It appears many users have reported similar issues with Newsmax audio unexpectedly switching to Spanish, even when their settings are correctly configured in English. This indicates a potential problem with the channel itself that could be fixed in future updates - learn more - learn more.

If the problem continues and is confirmed as an issue with the channel, staying updated via Roku community forums for announcements or fixes could also be useful - learn more.