How do you record from tv to usb on set top box?

To record from a TV to a USB drive using a set-top box, first ensure that your set-top box supports USB recording. Connect the USB drive to the appropriate port on the box and format it if necessary. Select the program you want to record using the set-top box's interface, and use the recording feature, often accessed via a "Record" button or menu option. Once the recording is complete, the file should be saved on the USB drive for playback on compatible devices.