One way to customize the Bell TV on screen program guide is to make your own Favorites Lists
Here's how to make a favourites list on Bell TV & here's how to make a favourites list on Fibe TV
another is to modify the Channel list, essentially hiding channels you don't watch or that you do not want to appear in the onscreen program guide (EPG - Electronic programme guide):
Turn on your tv and receiver then to hide channels using the remote:
Select Channel Locks
Now using the up and down and select buttons,
via the remote, choose which channels you want to lock out i.e. not see
Now when the on screen guide appears only the channels you didn't lock out are shown.