Here's a question for people who are a bit older. When I was a kid (1970s) we used to fly Pan Am and I recall flying in "FT Class" or something like that. Does that make sense?
I think it was akin to economy plus. I recall that they did not show movies in this cabin. My parents would ask the FA to take me to an open seat in the back where I could watch the movie.
It's a all bit fuzzy, I must admit.
I hope this question is acceptable. After all UA took over these routes.