...Or so I thought. The cable box tuner you have is capable of tuning in two channels itself, so it should be able to give you your PIP. I suspect that what you are doing with the coax from cable box to TV and opt similarly is degrading your signal. HDMI shold do the whole trick.
I'm far from sure of this but I think I'm right. Why don't you try it and let me know.
conflicting instructions between the Sony KDE-50XS955 manual and the Comcast HD cable box (Scientific Atlanta Explorer 8300HD).
A Comcast tech support instructed as follows:
Cable wall outlet (coax) to cable-in at back of Cable Box.
Cable Box HDMI out to the TV's HDMI in
Cable Box CABLE OUT (coax) to TV Cable IN
Cable Box Optical Audio out to AMP
this does not allow the dual picture mode (picture in picture)
It works fine otherwise but is it the best connection?
I am unable to get dual picture mode. If I use a splitter out of the wall outlet (as instructed by the Sony TV manula) and run into the coax input at the TV, I lose signal from Cable Box and only get a fuzzy picture on channels 1-13... Any thoughts on what's the right connection... Is there a special splitter that needs to be used? I got mine from Comocast and all my coax cables are the high-end ones from comcast...
The only other pertinent component I have is DVD which is connected to the TV with component video. No VCR.
Thanks

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