Samsung LCD -HBO GO -Directv - Not working?
Hang in there or see if there's a reason certain shows aren't shown. Sometimes the initial launch of the Apps gives the App writers an idea of what to pay attention to. In other cases, HBO may not own the content, and may require permissions - like Netflix, Hulu, and other services - who also don't have "unlimited" license to stream every movie title.
The App just recently launched, too.