In the backstage videos of music videos, you can see that camera operators are filming with small video cameras.
In the backstage scenes of TV shows, you can see that cameramen are filming with large cameras that they carry on their shoulder (or mounted on a tripod).
Comparing the quality of music videos and recordings of various shows posted on YouTube by TV channels, I do not find any difference.
It seems that small video cameras shoot just as well as large video cameras.
What is the difference?
It’s mainly the lens size. It has a wide zoom range with a servo rocker (zoom buttons) and can par focal* (focus at one zoom range and stay the same focus when zoomed out)
Then it’s a massive battery on the back and an audio kit strapped on the side. Then sometimes streaming device to live broadcast. Then you got a shoulder pad on the bottom and a big viewfinder for daylight shooting. Strip all that away the body isn’t as big and heavy as you think. So largely all operational to be used running around without needing to stop and change gear.