I switched over to Sundirect HD last week and I connected the HDMI outputof the STB to Samsung 23" multifunction FULL HD PC monitor.I set the screen resolution to 1920x1080 both in PC mode and TV mode.I found the HD quality of Discovery, Natgeo, Movies NOW,are simply superb excellent HD quality and super class audio.All the four regional channels-two in Tamil and two in Telugu are excellent true HD and not upscaled version.Sun do not give any upscaled channels.Also the normal channels are also looking very good.in PC side, as the resolution is 1920x1080,the quality is very good.