Zammit initially worked as a consultant veterinary surgeon on A Country Practice then began on-screen work with Channel Seven on Terry Willese Tonight. He later appeared as veterinarian on the Today Show then worked with Kerri-Anne Kennerley on the Midday Show. While still maintaining a veterinary practice on the outskirts of Sydney, his interest in zoo work has seen his family rear some unusual pets including lion cubs, tigers and a puma.[citation needed]