The Mihmiverse Holiday Special (1970)

Steve has gone missing but Stu, his loyal sidekick (and nephew), knows exactly how to find him: get human help! He sets out to find Steve's old friend, Danny Johnson, and discovers the next best thing: Danny's sister Evelyn (Alice Mihm)! With Evelyn's help, Stu embarks on a wild adventure that takes him from outer space to the North Pole and several exotic points in between. Along the way, he battles an old nemesis, meets one of Earth's most legendary holiday characters, and celebrates the joys of the holiday season!