Fly fishing trips filmed at private water for broadcast on TV should provide a disclaimer at the beginning of the segment indicating that there is only private, and limited access to the stream, and if the trout are fed to keep them in that section that should be mentioned.
In the past I fished the lower section of a limestone spring creek in PA owned by a dairy farmer. This water was leased by an outfitter based in VA if I remember correctly. At the time I booked the long weekend I was unaware of the methods employed to keep so many big fish in a section of water.
I caught so many trout in two and a half days that I didn't even bother trying to keep track of fish less than 17". I was told near the end of our weekend that during the off season late fall, winter, early spring the trout are pellet fed along the section of stream I fished to ensure they stay in the section and gain far more weight than would be natural if left to eat only stream born insects and smaller fish.
I'm not down on this type of fising and if someone has the wherewithal to afford belonging to a private club or for whatever reason can not make long distance trips to other destinations then this is the closest they might be able to get to catching big fish. However by no means should anyone ever imagine that this kind of trout fishing can be considered on the par for fishing for healthy wild fish that must fend for themselves all year long. Those are the fish that rip line off your reel and send goose bumps up and down your body. Those are the fish of memories.
One of many, this size and larger, caught on a three day weekend.