When I got a new Panasonic plasma TV with HDMI inputs (Panasonic Viera TC-P42X1 42 in. 720p Plasma HDTV), I attached my Panasonic E67 HDD DVD recorder to the Scientific Atlanta set top box via S-video connection. I used the HDMI output from the STB to connect the box to the TV. At first, there seemed to be no problem recording the video on the HDD of the DVD recorder. But when I left the recorder on (with the TV off) for several hours I ran into major problems.
After about 50 minutes, the recorded video would display on a partial gold background the message:
Your TV does not allow display of this program through the DVI input source. Please choose another TV input source.
Con la fuente . . . (and so on in Spanish translation)
From minimal postings on the Internet, I determined that I had a “handshake” problem between the TV and the STB. The Time Warner Cable box’s solutionto this problem was to go into defensive mode, to first cut off the video after about 50 minutes, then later the audio. At first I thought the problem was the result of a commercial with an ant-copy flag shutting down the box’s signal. That wasn’t the situation in my case.
After replacing the box and still having the same problem, by trial and error, I found the solution. Once I removed the HDMI inputs from my TV, leaving just the S-video and RCA audio jacks in, the problem ceased. The Scientific Atlanta box seems to be designed to eventually shut off its signal if it cannot make a satisfactory handshake with any device it is connected to, as long as it is outputting an HDMI signal. Even though I was making permitted recordings using the analog signal, the designers of the Scientific Atlanta box put in a shut off control when there was a questionable device (my overseas model of a Panasonic DVD recorder) connected to the box while the box was also feeding an HDMI signal out.
So you pay your money for cable service and you get a box with an intentional design defect built in. I think the box “assumed” that because there was a handshake problem and there was an HDMI connection, illegal copying must be going on. How the FCC allowed this box to get on the market is a real question. But then, today Bernie Madoff is scheduled for sentencing for his Ponzi scheme, which went on for too long thanks to the incompetence of another government alphabet agency, the SEC.