Teenage Mutant Ninja Turtles (also known as Teenage Mutant Ninja Turtles: Ninja Tribunal Teenage Mutant Ninja Turtles: Fast Forward and TMNT: Back to the Sewer for the fifth sixth and seventh and final seasons of the series) is an American animated television series developed by Lloyd Goldfine. It is the second animated series and third television series in the Teenage Mutant Ninja Turtles franchise. The series premiered on February 8 2003 as part of Fox's FoxBox programming block (later known as 4Kids TV) and ended on February 28 2009. A sequel film Turtles Forever serving as both the series finale of the series and a crossover with the 1987–1996 Teenage Mutant Ninja Turtles animated series (via the plot element of the multiverse) was released on November 21 2009.