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.
Can you please provide more information regarding the issue you are experiencing? Which HBO channel are you trying to watch the content in? Have you tried access the content through the channel directly?
With more information we will be able to assist you further.