RCA DTC100 High-Definition/DIRECTV Digital Receiver
It broke in nine months
Given the limited availability of HD programing available, we early adopters of such products must be masochists.  Cleverly (I thought), I bought the extended warranty, just in case.  So, when my digital audio went out 9 months later, I didn't worry too much.  It took me 4 more months to figure out that it was the DCT100, and not the cable or the audio receiver that was bad...  So, 2 stars DCT100 (which was cool, when it worked), and one star...