You can watch YouTube on Roku without paying any subscription. To do so, you need to carry out the following activation process.

1.Visit the Channel Store
2.Manually search for the ‘YouTube’ Channel
3.Or select it from the ‘Free App’ category
4.Click on the icon to add the channel
5.Once downloaded, you will receive the YouTube activation code
6.Enter the code in youtube.com/activate site
7.Click on the ‘Submit’ option to activate it