Liquidation.com - Liquidity Services Ripoff Items inside the box were different to described on website Washington District of Columbia

You must be aware with liquidation.com they sold me a totally different TV as advertised on auction. I choose to pick up myself and they denied any dispute because I arrange my own shipping. I tried everything but their policy allow them to just ripoff anyone.
these are the logs from my dispute with Paypal

From Buyer: Moises P on 4/15/2008 13:05 PDT
Items posted for auction were different to the once I got. I have the action description and manifest information from their website to prove that they made a fraudulent sale. Only the box was accurate. The items inside the box were totally different from the posted online. Their cost for items I got are over 50% cheaper of item published. I have all evidence and pictures of actual items. I tried to contact them before but they do not even want to open a claim. I have copy of the e-mail I sent them with no answer.
From Seller: Liquidity Services, Inc. on 4/15/2008 12:22 PDT
DISPUTE DENIED: Buyer arranged own shipping; When you opted to arrange your own shipping, there was a pop up box before you paid that stated "By opting to arrange your own shipping, you agree that any claims must be made at the time of pick up, therefore no claims would be accepted after pickup".
From Buyer: Moises P on 4/11/2008 16:50 PDT
Items were described in auction as " ilo 27" Widescreen LCD HDTV w/ Built-in Digital Tuner, LCT27HA36" Their manifest also describe the same LCD TVs but the once I received are totally different model and smaller. The model numbers for the items I received are ILO-26HD and the price is over 50% cheaper than LCT27HA36. Besides one of the items does not function at all. I have pictures of the actual items. There is only one correct part of the auction which is one of the boxes. It belongs to a LCT27HA36 but the item inside was a ILO-26HD. I am requesting a full refund of my purchase I tried to resolve the issue directly with the seller but they have denied my dispute since I pick up myself from the warehouse. Please HELP! Thx, Moises Perez 646-244-5357

Mmp
Woodside, New York
U.S.A.