Who found Tralfaz?

Tralfaz was the original name of the Jetsons' dog Astro. As viewers will recall Astro was a stray, acquired by George Jetson's boy Elroy in the episode "The Coming of Astro". Eight episodes later, in "Millionaire Astro", it's revealed that Astro's original owner was the super rich industrialist Mr. Gottrockets. Gottrockets is aghast his prized pooch was named Astro. His real name is "Tralfaz". Gottrockets wins Astro back after a court fight.

http://everything2.com/title/Tralfaz