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.
Roku Channel will offer shows and movies that it can. However, rights to various content doesn't always allow them to carry an entire series.
Amazon, for instance, offers some episodes/seasons of a show as part of Prime, but other seasons you'd need to buy. Other services are the same way. And, usually for the same reasons. The rights owners, as is their right, want more money for certain content, or for certain volumes of content.
DBDukes http://www.dbdukes.com/Roku Ultra (4660) Roku Streambar (9102) Roku Streaming Stick+ (3810)