If all they have is a hdmi-input, and no other inputs, and no outputs, you can't connect them. To connect you need an output and an input.
Kees
can someone tell me the best way to hook up my cable box,sony dvd/surround,and blue ray player and tv.. they each only have one hdmi input. 1. scientific atlanta hd converter/recorder Explorer 8300hd 2.sony dvd receiver-surround sound model #HCD-HDX501W 3.samsung blue ray player #BP-P4600/XAA 4.emerson lcd# LC190EM2

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