After the end of World War II, Lovy worked briefly for Columbia Pictures' cartoon unit, Screen Gems, directing five shorts before it was closed down, and in 1955 made his return to the Lantz studio, initially to finish some cartoons that Tex Avery had produced during a brief stint as director there.
[6] He carried on directing at the Lantz studio until the end of the decade, at which point he moved over to Hanna-Barbera.
There, he worked mainly as a producer and storyboard artist, and often supervised the studio's voice recording sessions.
In 1967, Lovy moved to the newly re-opened Warner Bros. cartoon studio, where he created the characters Cool Cat[7] and Merlin the Magic Mouse,[8] in addition to directing cartoons with classic characters Daffy Duck and Speedy Gonzales.
After just over a year at Warner Bros., Lovy returned to Hanna-Barbera, and worked there in various capacities until shortly before his death on Valentine's Day, 1992.