If your favorite movie or show is constantly being interrupted by poor quality internet and results in buffering, this most likely has to do with your internet speed. Amazon recommends a minimum download speed of 8 Mbps for SD and 40 Mbps for HD per stream. If you are subscribed to an internet service that is too slow to accommodate your Prime Video subscription along with other household usage, check for an upgrade or look for other service provider options in your area.