The Jetsons season 2 episode 37
To Tell the Truth
George convinces Elroy to tell his mother the truth about what happened to her favorite pitcher, but when Bubbles Blastoff, a guest at Spacely's plant, must leave on the red-eye back to her planet, George ends up being stranded with her on an asteroid. Will he follow his own example and tell the truth to Jane about why he never returned home until morning?