It is Pinky & The Brain...
It was a popular late night cartoon..
http://en.wikipedia.org/wiki/Pinky_and_the_brain"
Pinky and the Brain are cartoon characters who have starred in the American animated television series Animaniacs, Pinky and the Brain, and Pinky, Elmyra & the Brain.
Pinky and the Brain first appeared in 1993 as a recurring segment on the show Animaniacs. From 1995 to 1998, Pinky and the Brain were spun-off into their own Emmy-award-winning show on The WB Television Network, Steven Spielberg Presents Pinky and the Brain, with 65 episodes produced by Steven Spielberg and Warner Bros. Animation. Later, they appeared in the unsuccessful series, Steven Spielberg Presents Pinky, Elmyra & the Brain.
Pinky and Brain are genetically enhanced laboratory mice who reside in a cage in the Acme Labs research facility. In each episode, Brain devises a new plan for the two mice (led by Brain) to take over the world, which ultimately ends in failure. In common with many other Animaniacs shorts, many episodes are in some way a parody of something else, usually a film or novel. The cartoon's tagline is:
Pinky: "Gee Brain, what do you want to do tonight?"
The Brain: "The same thing we do every night, Pinky—try to take over the world."
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