Samsung PL64E8000GFXZP - Manual (Page 136)

select Add Network and enter
the correct Network Name (SSID)
and Security Key to establish the
connection.
4. If the Enter security key screen
appears, go to step 5. If you select
a wireless router that does not have
wireless security, go to step 7.
5. To set wireless security for the router,
enter the Security Key (Security key
or PIN).