Samsung PN51E6500EFXZA - Manual (Page 113)

user's manual.
You can connect your TV to your LAN
through a standard wireless router or
modem.
This TV supports the IEEE 802.11a/b/g
and n communication protocols.
Samsung recommends using IEEE
802.11n. When you play video over a
network connection using IEEE 802.11
a/b or g, the video may not play
smoothly.