The WD Live and WDTV HD do not. For Netflix streaming you need the WDTV Live Plus. It's about twice what the Seagate Theater+ costs. I got one of the Theater+ units as well and it plays almost everything I can throw at it. The Netflix streaming is HD. Windows shares are no problem. It even played a ripped DVD ISO with menus over the network. Very impressed with the bang for the buck I got.