I stream from win7 PC wia WIFI (G router, PMS 1.80.0) to Samsung TV (PS51E6500) directly or to another HDTV via PS3 (fw 4.40). Recently I noticed that streaming the same SD video consumes different bandwidth depending to which device it is streamed. E.g. when streaming to Samsung TV it only uses ~2-3Mbps, but the same video to ps3 takes ~10Mbps and playback sometimes stutter. I measure bandwidth with Netpersec app on PC.
Can it be that PMS is upscaling video for ps3, or this is something else?