How do you watch 3D on the TV?

What type of 3D Emitter should I purchase so I can begin experiencing 3DTV? Is there one specifically for this TV? If there isnt one for Samsung, can you please let me know which one I should purchase so I do not have to go through the hassle of purchasing the wrong one. Thanks

What formats are supported with this tv?

I have a Blue-Ray player that can be set to 1080p24 is this format supported on this tv? Will I be able to notice the 120hz movement?

What do I need to stream Netflix videos to my PN50A450

Can I stream video to my HDTV from my PC and what equipment do I need to purchase.