good morning -

I have a TivoHD that has recently been showing interference, particularly on the Tivo Central screens, that resembles the "snow" that used to show up on analog TVs. In this case, it looks like short horizontal white lines that appear all over the Tivo Central screens and in dark areas on live or recorded TV. Strangely, it does not show up on the Netflix screens or Netflix streamed recordings.

This occurs with both HDMI and component output and even if the HDMI cable and power cable are the only cables attached to the Tivo.

Could this be a power supply or motherboard problem? Is there any way to differentiate between the two?

thanks in advance.