Help & troubleshooting for channels on your Roku device, including adding/removing channels, logging in to, authenticating, or activating a channel, channel-specific playback issues, assistance contacting channel publishers to report issues, and adjusting channel-specific settings.
Often just loading the channel/app on your Roku is free. However, having the channel/app and being able to watch anything are two different things. It looks like you have to link the Roku channel to your Viki account, but you can just add the channel to your Roku and see what happens. Set a PIN for your Roku account to ensure you won't be charged for something unexpectedly.