Thanks for pointing this out! I've become so used to using the search page I completely forgot about the "My Lists" link at the top right.
Anyway, the link will now redirect you to the search page using the "listed" filter. On the search page you'll see a bar on the left of an entry if it's on your list.
Green = Completed
Yellow = Seen Some
Red = Not Interested.
There seems to be a minor glitch with the "Plan To Watch" option. I'll look into it later tonight when I get the chance.
Thanks!
PS: I'll push out an update for an official user list page ASAP.