AVS Club Gold
Join Date: Apr 2001
Location: Marina Del Rey, CA, USA
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This is a reported problem caused by the HR10-250 and its HDMI. Also shows up with other sets, such as the Sharp Aquos 45". The problem is with the HDMI functionality in the HD-Tivo box, not the HDMI cable or the sets.
It's been discussed in various threads, as "purple" or "pink" discoloration.
As D* instructed, it can be overcome by disconnecting and reconnecting the HDMI cable, which causes the HD-Tivo and HDTV to re-handshake and establish sync. I believe you can also trigger the same re-handshake without disconnecting the cable, simply by changing the channel to one with another resolution... e.g. going from a 1080i channel to a 720p channel or vice-versa.
My nephew has gotten around the problem entirely by changing the connection method from his HD-Tivo to his Sharp Aquos (actually to its media box) from HDMI-to-HDMI to HDMI-to-DVI while running a separate L/R audio cable for the audio portion (assuming you need to use the TV's speakers at all). The discoloration problem disappears when connecting using HDMI-to-DVI on the TV. It's only present when connecting to HDMI-to-HDMI.
But the problem is in the HD-Tivo, and you are not alone.