Hi, with you living up there in a good reception area your tv can find channels from more than one transmitter and it's possible that the tv has tuned itself onto the the wrong transmitter for some of the channels, the best thing to do is wait till Wednesday and do another full factory reset then you should find it tunes itself in correctly, if not the the only other way is a manual tune but you need to know what your doing and what the frequency numbers are for your required transmitter. Hope this helps, ps this also go's for any type of freeview receiver