Previously synced movies no longer downloadable to iPad
I'm having an issue syncing movies to my iPad using the purchased media option in the iTunes store. Some of my movies don't have the download option and only have a watch option. Some movies that I was able to download previously also now only show the watch option. I have plenty of available room on the tablet. I've also done a soft and hard reset with no change. It almost seems as if iTunes think the move is already on my iPad. After some searching, I've been unable to find a someone else with a similar situation and I could use some assistance. Thanks much for any advice in clearing this up.
iPad (3rd gen) Wi-Fi, iOS 7.1