(For more information about what type of antenna you may need, go to ) In Media Center, a digital high-definition signal that is transmitted through one of these boxes will be converted to an analog standard-definition signal. Buy Velleman Digital to Analog Converter Board: Analog-to-Digital (DTV). Step 2: Plug your indoor or outdoor antenna into your TV set or digital tuner device. If your TV set does not fit those criteria, you need one of the following: