A discussion with voice actor Rob Paulsen brings up a rather heartwarming story behind the most bizarre Pinky and the Brain short.
Animaniacs – The Brain Full Backstory
Pinky and the Brain, Ultimate Pop Culture Wiki
Pinky and the Brain (segment), Animaniacs Wiki
Dec. 3 – Animaniacs – 'Twas the Day Before Christmas
Ruby Gloom' gets me in touch with my inner 12 year-old goth girl
Pinky and the Brain, The New Toon Disney & Jetix Wiki
21st Anniversary 21 Years Old Floral Pink Isolated Abstract
Pinky, Animaniacs Wiki
Dec. 3 – Animaniacs – 'Twas the Day Before Christmas
Tom Ruegger - News - IMDb
Ed Asner: The Most Memorable Animated Roles From the TV Legend
Sam Kinison - News - IMDb
Pinky and the Brain: Brainwashed, Animaniacs Wiki
Top 100 Animated Series