Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Works great except with TiVo

I bought one of these yesterday, and loved the picture. When I hooked it up to my TiVo, there was a very regular hiss....hiss...hiss, even at low volume settings. I did a lot of experimenting, and found that it fails with both TiVo's, and the problem is worse with a longer audio/video cable or an A/V switch. Even with the short cable, it has a very bad hiss if the red audio cable is not hooked up. It looks like a bad ground in the audio input of the TV. The TiVo's work fine with my HT Receiver, and my Panasonic TV, even at high volume levels. Don't know if it is just this set, or a design problem. It does sound fine with other inputs (DVD, etc.) but it is not usable with TiVo.