Of course, there are aspects of a serial aesthetic that might be lost in the shift to a boxed aesthetic.
This shows the change is how we consumed media. Most people liked the thrill of waiting weekly for a new episode to come out. Once boxed sets came out you could just binge watch the whole season in one go. This took away from the suspense and the excitement for some people. For me when I find a show I like, I enjoy being able to watch it all instead of waiting months to finish a season.
Perhaps even more significantly, the availability of boxed sets enables experiments with serialized pedagogy.
Boxed sets were made so teachers or people that wanted to study them could do so. This made it easy because it would come with the whole season usually and you could replay as many times as needed.
The most prominent serial narratives in the history of broadcasting, daytime soap operas, have received almost no commercial release on home video and can be seen almost exclusively in their daily scheduled flow without reruns.
Daytime soap operas are actually at the top of serial shows in broadcast history since most people know them. This is surprising because they aren't streamed and mass produced in DVD format either. So this gives an exclusivity to the people that watch them and makes them plan their day around broadcast times. They are also rarely reran so if you miss them, you miss them.
Broadcast TV characteristically has a slighter stress on the causalnarrative chain of events than entertainment cinema.
Broadcast TV often doesn't rely as much on cause and effect story line like most movies do. TV tends to build characters and show more their development, while films focus on events that keep the plot together and progressing. TV does his so people want to come back for more every time they release a new episode. Films usually tell the story in one go so they don't need to do this.
Non-fiction films have always had a precarious place in thecommercial cinema, and nowadays they are practically non-existent.
I agree that most cinemas are fiction but like anything, there will always be a trend that switches around. We do see a lot films that are based on a true story, so to a point that is non-fiction. Technology has just came so far that everything needs to be enhanced for people to keep interest.