The industry standard framerate for TV shows and movies is 24 fps. This creates the "movie" feeling that distinguishes a fictional product from a reality TV show like Cops. However, all smart TVs currently come with a feature with various names like "motion smoothing" that creates fake frames to "upscale" movies to 48 fps or 60 fps. This results in a bizarre visual effect that makes everything look closer to real life, so instead of enjoying suspense of disbelief you feel like you're watching a bunch of actors play dress-up in a backyard (which is what they are doing, yes).
Personally I can't stand this, I have no idea what kind of idiotic impulse led to its creation, and I try to turn it off every time I see it (which requires wading around in submenus because there's no industry standard name for it), but at this point I've run into multiple people who don't even seem to detect a difference between 24 and 48 fps. To me this is one of those things that make me question if some individuals are living in a different reality. I can't imagine watching an entire movie that's been "upscaled" to look like a AA-tier in-engine game cutscene.
Scaling anime fight clips to 60 fps and 4K has become a cottage industry on youtube as well. The best you can hope for is that it doesn't hurt the original content too much.
I find that ignorance or indifference to this is tied to a person's tolerance for slop like soap operas or Netflix originals. It's genuinely disturbing.
So studio cameras are really expensive, while the cameras for cops are fairly cheap. So, they got the newer stuff before the studios. Daytime dramas are next, and it slowly goes up the chain.
At one time it was 15 frames a second.
Sure, but even when they do have the fancier equipment, they actually end up downscaling to 24 FPS, because it's the norm. Some videos were filmed in 60 FPS in the 90's...even one in the 70's and one in the 80's. They were all downscaled. Except the 70's/80's, actually.
Interestingly, Blair Witch Project (1999) was also shot in mostly 60 FPS, and it was all downscaled to 24. Which is a bit strange, considering the 'found footage' concept could have actually been an interesting high FPS experiment.
Gemini Man (2019) was 120, and still downscaled to 24.
So it's not quite as simple as them not having the equipment, they intentionally bring it back to the norm.
Most modern video editors downscale it for you even. It's really annoying to video guys because it's entirely because of people who think this is what cinema should look like.