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Originally Posted by rverdlm
My other TV goes through its channel search and finds all the HD channels. The TV that is a 2005 model wil not find any cable HD channels. I need a tuner box that will find the HD cable channels and then pass them to the TV through a HDMI interface. BTW this TV will work as HD with DirecTV and will find all over the air HD channels.
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Your DirecTV HD receiver will display HD channels even without an HDMI cable. The HDMI is just there to give you an even better picture.
Just like our 3D TV displays the 3D channels on our DirecTV HD receiver. But it won't work on our non-3D HDTV in the bedroom.
From our limited experience with HD cable, we needed a receiver to convert to HD channels even on an old Mitsubishi CRT TV. But we've also found that not all cable channels are in HD, just like all the DirecTV channels are not in HD.
Basic cable is always available, but if you have an HDTV television, it converts OTA signals and cable channels that are in HD as well.
There are too many cable companies to have one universal box that will work with all of them.