Where are the rest of the seasons for Jeannie? Do we have to pay a premium rate to get more seasons or is this just a Roku thing where they dont include the full series? I noticed that other shows like The Nanny were not the full series either. Please help!
I assume you are referring to The Roku Channel, and not some other provider.
Broadcast rights are extremely complicated, and often a provider such as Netflix, Prime or Roku is only authorized to stream certain seasons, and sometimes even specific episodes, and always for a specific, limited amount of time. So you get shows/seasons/episodes come and go on a regular basis. That is likely what you have encountered, and no there's no way to get anything not listed as available. Of course, places like Amazon might offer it for sale, either on disc or streaming only. But in that case you have the ability to watch at any time for as long as you like.