Comcast has two mantras. Increase sales and cut costs.
Comcast is cr*p at doing the latter. Why did it take a callout to my house in order to get my cablecard working? The online system and their attempt to authorize the cablecard when I called in both failed, but why? All that happened during the callout was that the technician called his buddy to send the signal to authorize the cablecard. Then he changed a few connectors in the wiring -- probably to justify the callout.