[mythtv-users] Dual tuners with different channels

George Styles george at ripnet.co.uk
Fri Dec 10 13:02:42 UTC 2004

> If you had hardware knowledge, I suppose you could, theoretically,
> wire-up an opto to the power LED in the cable box, and connect the
> output to an unused serial port line on the PC. A simple Perl script
> could then read the state of the opto.

Point a 15 usb webcam at the power LED and do some image processing to 
determine if its on or not. Im sure that would be quite easy if it was close 
enough, although would look ugly if the cable box is under the tv


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