I have Amazon Prime Video, a by product of my wife's effort to get her packages faster. Don't use it much but have no complaints with the streaming quality, including HD shows. I use a MOCA connection not Wi-Fi.
My question has to do with fast forwarding (and backward). When I fast forward, the screen goes black except for the time line at the bottom of the screen. When resuming play speed, the picture reappears at the new location. Thus, one has to be able to fast-forward based on time location rather than looking at the picture. Is this something unique to Amazon prime or is true for others such as Netflix?