I recently purchased a Panasonic TH-P42G15A Plasma, and when my TiVo HD is connected via HDMI, the picture appears to go black, then go all coloured static like, and then come back, every now and again. Looking into this via the internet, it appears to be a HDMI handshake problem. I have changed different cables, and still get the same problem. I am wondering if anyone else here has a Panasonic Plasma, and has the same problems occuring with a TiVo HD unit.