Hi Ive had my samsung for two years and have decided i want to conect to wifi. All the directions say go to menu,settings and select network. But my smart tv doesnt give the option of network. I looked at the back ind theres an empty slot for some sort of card. Could it be a wifi card of somesort that my tv is lacking. If so where.can i get one. Or my tv just isnt wifi compatable? Model# LE32E420E2W Made in Hungary