So my mom wants tv in a room where there is no cable so we bought a new xbox360 and we are using the wireless to watch tv in that room. There are no problems with the video playback, just the UI is really laggy, on my xbox which is wired there are no problems with lag at all. The router is a wireless N (150mbs I believe) router (linksys 160n something like that), and I believe the newer xbox has wireless N also. Not to sure why the UI is laggy but everything else is fine.