It has a great impact on digital cable TV set-top boxes, so they are not allowed to be sold. However, there are still some for sale. Pay more attention. The program definition is relatively high and can be used indoors. It is a one-time purchase. It is said that it is There is no need to pay, but the validity period of my TV card information is 5 years. I may have to buy a new card or activate it after 5 years, but it is okay to pay more than 400 yuan to watch it for 5 years. My home is a building and can be used.