Euro TV is available as private app on Roku. The app can be installed directly from the Roku website. For this approach, login to your Roku account at https://my.roku.com/. Once signed in, click on the "Add channel with a code" button.
At "Add Channel", Screen enter code: "Hungariantv" and Click to Add Channel, Then Ok, and Yes, Add channel. Channel Euro TV - Live has been added to your Roku channel lineup.