As stated above, that cable is below the white box that holds the blue ray. Four screws hold it in place, remove them & prop the white box (cabinet) up. the blue ray in attached to a small box laying there, also attached are your two Television cables. That splitter box needs to be replaced with a two splitter box so the blue ray AND your cable line can be attached, When finished that splitter box will have a total of 4 cables running to it, your two TV's, blue ray & dish cable. It's important that the new splitter has either automatic switching from blue ray to dish or a remote to do it manually otherwise every time you switch between this two devices you'll have to remove the four screws etc.
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