Complex sentence: In late 2013, WTNZ-TV debuted a new logo and changed their on-air branding to "Foxville 43", before reverting to "Fox 43" three years later.
Split into simpler sentences: In late 2013, WTNZ-TV debuted a new logo and changed their on-air branding to "Foxville 43". It reverted back to "Fox 43" three years later.