Favorite Channel Duplicates

I am selecting Showtime as a favorite on channel 1840, yet when I go in to the favorite guide it is showing Showtime as the first entry on channel 339? 

I am trying to select Sports and Premium channels on high H-D channels in an effort to show local channels first in the guide. 

Why is it choosing a channel I DIDN’T select as a favorite? I don’t want to list EVERY instance of the same channel!