Is It Worth It To Manage TiVo's Channel List?

I am pondering how to manage my TiVo channel list. Actually, I am pondering whether I want to manage it...

I hate all of the SD channels cluttering my guide when I have perfectly good HD matching channels. I also wouldn't mind getting rid of some of the channels that I have zero interest in ever viewing (non-english channels mostly).

What do you all do? Do you mark these channels as though they were "not received"? Or do you leave them alone and just mark your favorites and filter your guide by favorites?

I really don't want to get myself into a channel management administrative nightmare... Just looking for best practices... :)