A warning to those out there who are considering buying the USB WiFi dongle for this to use it as a DLNA client, I can not get mine to work with TVersity, PS3 Media Server or Windows Home Server, the only thing is will work with is Panasonic DMR XW380 (which is not much use because they chose to not support HE-AAC, although it must have the codec as it's a FreeView TV).
The "diagnostics" simply state "Failed" when attempting to connect to any of these servers.