I have WDTV Live with latest firmware (1.04.17) and have DLink DWL-G122. I am not getting selction page for wired or wireless mode option in network setup options after plugging in Wifi USB adaptor.
However it appears that not all these adaptors work with the WDTV. I’m afraid its a bit hit and miss as to what adaptor does work. It all depends on if the adaptor chipset is supported in the WDTV firmware.