What symptoms will appear before digital TV needs to pay? Or what words appear?

The "symptoms" that will appear before digital TV needs to pay are:

Using digital TV signals, you need to charge the user card continuously to watch digital TV programs normally.

In the last payment period, after the digital TV signal is used for a long time, there will be no image and no sound, and the prompt "No program authorization" or "Smart card (user card) has expired" will be displayed on the TV screen. Return to normal viewing after paying the fee.

Of course, when the payment period comes, there will be subtitles on the TV. You can renew the fee a few days in advance to avoid interrupting the program.