I am unable to connect my wii to my new samsung 55 inch led lcd tv, are their special connctions you can buy?

The Tcon board or the LCD pnle is faulty.can confirm by replacing the Tcon board.
http://electro-medical.blogspot.com/

Setup menu - WiFi - LAN - Network if this does not work try going to web browser to get an error message.
Samsung 3D LED Smart TV Setup menu WiFi LAN Network

You'll need to replace the main tuner board. You can get it onlie from:
TV Parts Universal TV Stands DLP Chips ShopJimmy It's pretty easy to do yourself.

Not good. You may have a tab failure. A repair shop may be able to diagnose and repair this, but most likely the lcd panel is broken. The panel is the most expensive part of flat tv's. A new panel will cost more than a used tv.

Same exact thing going on with ours !!! Same model !

If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Line, faults & possible causes to both LCD & Plasma TV screen are given with illustrations. You can get an idea about the fault to an extent.

What kind of cable connection are you using? HBMI?

Not going to happen. Those screens are the most expensive part of a TV as well as the most fragile. It would never survive shipping without the hard bezel around it. Sorry to say you are going to most likely be shopping for a new TV.

If anyone will sell just the panel, it would be Vizio, but they will most likely require you to ship them the TV which will cost more money and may not be covered by your warranty.

Seriously, often the cost of replacing the screen is high enough to just spend the money buying a new TV.

Check how you have it connected in the back of your TV. Refer to your TV user manual for the correct connection diagrams. I have a new Samsung LED and I had to connect the Wii different than my older Samsung LCD.

Are you using RCA Cables, HDMI, etc..

It is obvious that the screen is cracked and must be replaced. There are a few problems in doing that. First, it is NEVER covered b warranty. Second, the LCD panel likely cost at least double the price you paid for the TV, if it is even available. Many are not available. Time to shop for another set. Sorry; John