Télécharger amazon prime video onto pc

https://www.playon.tv/blog/download-any-amazon-video-to-your-computer

I thought I'd give Amazon Prime videos a go. Not a monthly or yearly subscription or anything.Is this how it is with Amazon Prime Video?? Why can't I download this episode onto my PC for safeDownload Availability & Viewing Periods Only selected Prime Video titles are available to download... Amazon Prime Video pour PC | PCAppsNet.com