Back to the Future S02 E02 Put on Your Thinking Caps, Kids! It's Time for Mr. Wisdom!

"The time travelling adventures of Doc Brown, his family, and his friend, Marty McFly."

Marty and Verne meet Mr. Wisdom, who hosts a popular children's science show. As it turns out, Doc and Mr. Wisdom were college roommates. Doc doesn't recall it with fondness, as Mr. Wisdom stole his invention for a science fair and won. Things apparently haven't changed as Mr. Wisdom has stolen the DeLorean!