The antenna interface of TV is generally wireless analog input, and the signal line of cable TV transmits digital signals, which are different. Unless the TV has a set-top box function, you cannot watch the digital cable TV signal connected to the analog signal input interface. My family has a Skyworth 32E660 TV with this function. Insert the cable TV viewing card into the card slot of the TV set, insert the cable TV signal line into the antenna interface of the TV set, and select the input mode of the TV set as digital TV, so that the channel can be searched directly, so that the set-top box can no longer be used. It will be more beautiful if you hang the TV set on the wall without a set-top box.