Sony EX 52 and wi-fi.

Well just got my shipping.. I tried to setup wi-fi but failed.
Just simple question, Do I need to buy Sony UWA-BR100 USB Wireless LAN Adaptor??
Thank you!
Answer #1
Im pretty sure you do mate. I just bought a 55EX720 it has a normal LAN adapter but it doesn’t come with a WIFI one. Mine said i needed to buy it Separately.
Answer #2
Ah!! Guess I have to buy one.. Thanks
Also, how to connect External HDD? I want to connect my HDD and watch..