Rosie's name for Elroy was Roy Boy.
No hurry, any time in the next 5 minutes is fine.
Over the closing credits, George comes home, is made comfortable by Elroy and Judy, but it was short lived when Jane hands George the leash to Astro. He's next seen outside on the conveyor belt walking him when a cat jumps on it in front of Astro causing him to start chasing it, speeding up the conveyor, then both he and the cat jump off, leaving George running for his life and screaming for Jane to "stop this crazy thing!"
When broadcast in syndication starting in 1985, the original opening to the series was rescored with a more modern version of the "Meet George Jetson" theme. All the episodes (new and old) were also shown with opening title cards, although the original 1962 episodes did not have them.