Netflix was only available on Blu-Ray players in 2008, which is when your television was released. Only in 2010 did Netflix become an option on Samsung televisions. There aren't any plans that I'm aware of to add that functionality on any 2008 models of Samsung televisions. For the 2008 models, they didn't support wireless 802.11g/n speeds, so I don't suspect that Netflix will be an option.
However, our 2009 and 2010 models of Blu-Ray players have Netflix available as an option, in the event you're planning on purchasing a Blu-Ray player in the near future.
I realize this is not the answer you were probably hoping for, but I hope you will consider Samsung products again in the future.
My Samsung LED HDTV, 52" TV is appox 2-3 years old. The model number is MODEL #LN52A6301FXZA. I have created a Netflix membership, but cannot locate a netflix activation code for my TV. How do I locate this code for the Samsung TV?