To login to Viki on your Roku app, you will first need to have a Viki account and a computer.
If you don't have a Viki account yet, please register here.
On your Viki Roku app, go to the Login section. Use the Roku linking code you see on your TV screen and write it down on the code section on www.viki.com/roku.
Click 'Link Now'.
You are now logged in to your Viki account on your Roku device.
Note: You will need to follow these instructions every time you logout from your Viki Roku app.