If the sound is audible over you regular viewing, then it's definitely a problem! Is the box sitting on a potentially noisy surface such as glass? If so, vibrations from the TiVo® on the surface could be causing the noise. If this is the case, try placing a non-slip mat under the TiVo® to see if that helps.
If there is a loud, clunking noise coming from the TiVo® itself, we'll need to get a technician to take a look. Juts in case, I've sent you a private message (purple envelope at the top right of your screen) so I can arrange an appointment. If it turns out to be the surface the TiVo® is on, you can ignore the private message.
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