What must be done to a digital television set connected directly to the broadband cable network to store channel information?

To store channel information, a digital television set must be instructed to "scan" and store channels. This process typically involves the television automatically searching through the frequency spectrum to detect the available channels on the broadband cable network. During this scan, the DTV identifies the signals being transmitted, retrieves the relevant data, and saves the information so that the viewer can easily access it without needing to tune in manually each time. This function is essential for ensuring that the television can access and display all available channels effectively.

The options related to calibration, firmware updates, or connecting to a computer are not necessary steps for storing channel information. Calibration typically involves adjusting settings for optimal picture and sound, while firmware updates pertain to software improvements and not directly to channel storage. Similarly, connecting the DTV to a computer is not a standard requirement for channel scanning and storage in this context.