@Hosscat65
You can limit the Roku devices to the desired resolution output under Settings/Display Type/[720p]
Just make sure to manually set it to 720p and not use "Automatic".
If you are trying to conserve data, make sure to enable bandwidth saver under Settings/Network/Bandwidth Saver as well and always make sure you press the "Home" button on your Roku remote to return to Home Screen that stops any streaming activity.
Roku Community Streaming Expert
Just another Roku user... I am not a Roku employee.
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