LG 47LM9600 Owner's Manual page 144

When replaying music clips, there is no support for playing with clip moving.
(Same as DLNA.)
When playing high-definition videos through a Wi-Fi connection, there may
be delays or improper playback.
The TV may not recognize the computer if the AP settings are not correct.
(e.g., When setting the "multicast forward" feature on the AP device, the TV
cannot recognize the PC on a Wi-Fi connection.)
For some plug-ins, play function may be limited depending on media types.
Plug-ins are subject to change or becoming inoperable without prior notice
according to the policy of the service provider.