if all the channels scan its ok,if you notice any channels missing you will need to re-power scan on step 0.5,BUT if you do that ALL the channels and transponder frequencys and any programs you have put in favorites will delete,when i do a first power scan i scan on step 0.5,so i know then all the transponder frequencys are scanned into the the blade,and then if any channels go 'missing' through any transponder frequency change i can then just do an auto scan and it will not effect any channels that i have put in 'group button favorites',to put the new frequency channels in favorites go into menu -> favorites,put the favorites on the group button you desire for instance sport if its ssps1 that is missing press the A to Z button on remote 'i think its the yellow button' then look for the active ssps1 in the ' S ' column on the A to Z and then simply press ok on the active ssps1 and you will see that program be marked for the group favorites,to take the ssps1 that is not active press ok on that to take the mark off that and it will take it from favorites,exit and save,then go back into menu look for "move" in the menu,again put the group button on which favorite you desire for example sports then you can 'move' that program were you want in that group