"Jim!!"
The highest rating I can give to an episode. It not only means that it is objectively great, but that I enjoyed it and it finds itself in my DVD player many times.

"Fascinating"
A good to very good episode. I enjoy it, and I'll watch it if I am in the mood. But it is ultimately not one of my favorites.

"Indeed, Captain"
The episode is decent or ok, but is flawed and I cannot find it in my heart to watch it much.

"Curious"
I find the episode to be bland, lifeless, embarrassing, or just plain bad.

"I ...... am ...... a ... Vulcan"
The lowest possible rating an episode can receive. I find the episode so offensive and deplorable that I have to lock myself in a room and remind myself of what I am and what my purpose in this world is.