Det verkar som om det är "mentorer". En kanadensisk show, men matchar den förutsättning du har skrivit ganska nära. Det sprang i fyra säsonger med 13 episoder vardera. Sammanfattning av Wikipedia :
It was about a boy genius who uses his computer to bring famous historical figures from the past into the present. As an example, he and his girlfriend "summoned" Albert Einstein, Alexander Graham Bell, and Joan of Arc in the first three episodes. Eventually the boy hands the machine over to his two cousins who bring forward figures such as Confucius and Vlad the Impaler.