Being a South Knoxvillian myself, I drive by the Kerns Bakery quite often, and always enjoy the smell of freshly-baking bread coming out of the building.
At night, the sign is lit up by neon lights that border the slices of bread, and they go in sequence for each slice, bringing to mind slicing bread, making a sandwich, or - of course - bringing you attention to the idea of buying Sara Lee bread.
Personally, I don't care for Sara Lee, but I do like their sign!