yes from Sun's own transponder it can be 175 but there are 5 other transponders from DD DTH on same satellite, each can carry abt 15 channels (MPEG2 good quality)so 175+15*5 (FTA) = 250!!Also in future SUN and DISH can tie up together to share transponders from each others satellite (as they are close to each other), which can further increase capacity by 150-175 more channels.