With Harmony, you add a device by specifying its brand and model number (not by an obscure table code). You need the original remote only if the device is not in the database, or to teach missing command(s). Your Magnavox STB and Sylvania TV devices may already be in the Harmony database. You can pre-check them out at this site: [Link: myremotesetup.com]
Last edited by jlet on February 20, 2009 16:30.