There is more to it than just lists.I'm curious as to why people feel compelled to lock out channels as opposed to using custom lists.
Ever try searching for movies (or anything for that matter) upcoming? If not, try it and you'll see (especially PPV's).
Also if you go to all HD list - you can have it actually be all the HD you receive programming for, minus the abundance of ones you don't.
Adult programming lockout is good as well - especially if you have kids reading the guide (they know how to press the guide button to 'all channels'.