Last time I used my Wii U (many months ago) I remember that there was an option to play Wii games with a WII controller on the gamepad, and thought it would be nice if I could hook the gamepad up to a TV in a different room to play those games.
I am currently looking for the cables and things I misplaced to hook the system back up.
EDIT
I normally use my computer monitor for consoles (and my PC), as it has HDMI, Component, and DVI.