Is there no key/command to jump directly back to the home screen? All of my searching seems to show there is not. I think this would be a great addition. It's one of the little things that would make moving through menus much more pleasant.
Using what? On a keyboard you can use "home".
EDIT: See below.
Correction, Escape should go to the home screen. "Browser home" on multimedia keyboards should also go to home screen, but normal "home" just goes to the top of a list.
Well that turned out much simpler than I thought... This is what I get for investigating this stuff at 3am. Was just about to set up a keymap for it and noticed that my remote already has the "0" key set for that.