Is there a way to update a Roku TV?

Press the Home button on your Roku remote. Select System Update. The System Update screen displays the current software and build version, along with the date and time of the last update. Select Check Now to manually check for updates.

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Why is my Roku TV not updating?

Try restarting the Roku device and your router. To restart your Roku player, go to Settings > System > System restart. To restart your Roku TV, go to Settings > System> Power > System restart. You can also unplug the Roku device from the power source and then plug it back in.