TV boxes and set-top boxes are referred to as TV boxes, but they are not the same in essence. TV boxes now refer to "smart boxes", while set-top boxes refer to traditional cable TV set-top boxes.
Smart TV box: also called network set-top box, which is equivalent to a large-scale mobile storage device, which can be downloaded, installed, and expanded to use content.
Cable TV set-top box: The main function is to transmit cable TV signals, so that the TV can watch all kinds of cable TV, and some live content can also be watched.