To those looking to replace screens:
Only the manufacturer will have replacements at this time. In most cases, the cost of the replacement screen will exceed the cost of replacing the TV. One posted here indicated that he/she was able to get a replacement by calling Samsung directly. While I don't dispute this, it is news to me that this occurred. I was more surprised that Samsung sold the part at such a low price. If you can, pursue this for your sets as well. Replacing the screen is a fairly straight forward process. Keep in mind that you will be working with delicate ribbon cables that connect the boards and screen. These cables can easily tear and become useless. If you are not comfortable with the process, contact a service provider that can replace the part for you.
Be also aware that panels don't usually fail (other than from physical damage). All other options should be explored prior to screen replacement.
Dan