What's the difference between cameras used in TV stations and ordinary ones?

Television cameras belong to broadcast cameras. Generally speaking, cameras are divided into three categories: consumer, professional and broadcast. In terms of lens operation, the zoom is electric, the hand-held lens can be turned manually, and the servo system is very powerful, which can make the lens zoom from the wide-angle end to the telephoto end in a short time. Whether the aperture is servo automatic or manual spiral. Generally, the focus of broadcast cameras is controlled manually, and there is no or no autofocus function. Focusing is accomplished by directly tightening the focusing ring, and the focusing handle used on tripod is usually mechanical (or electronic servo).