sv4 usb sorts the channels auto by channel number as they are on a stb box(suppliers box).thats the order and if you dont like it tuff you cannot change the order,THERE IS NO SORT OPTION(its there but its yellow and you cannot choose it),otherwise you can skip channels you dont want to watch via channel edit>skip option,that way you can keep the channel for future vewing,but when you are channel hopping it will skip past(wont show) the ones you have selected to skip.