An anonymous reader writes "Across New England, updates have apparently been rolled out to Comcast's Motorola cable boxes that disable the serial port so that Tivo can no longer change channels. My dual-tuner Tivo can still access non-digital channels, but I have to use the cable remote to access HBO and the like. If you're a Comcast user with a Tivo, please let Comcast know you're displeased with this behavior — although they may be working with Motorola to back-out the change. New cable boxes with functioning serial ports will have the serial port disabled after automatically downloading this update. Asking tech support for a "Factory Default Reset" might help for some boxes. Comcast claims to have been unaware of the update and blames Motorola for pushing it out — begging the question of why a service provider would allow a hardware vendor to make changes to their customers' devices without so much as a heads-up?"
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