Sorry if the answer to this has been posted already. I purchased an open box Panasonic Plasma TC-P55st31 from Best Buy recently. When going to hook it up, I noticed that I don't have all of the adapters required, that usually come with the TV. After a frustrating experience with Panasonic's customer support, I finally got prices on the cables, it would be over $100 to get the required adapters from them, which seems pretty ridiculously expensive to me. I am trying to figure out what kind of connection is required on the TV side of the adapters, and if I can purchase generic adapters elsewhere, from Radio Shack or Monoprice, etc. Thank you for the help.