Turtles in Space (4): The Arena - S2-E4
Continuity mistake: When the Turtles and the rest of the gladiators are to be ferried up to the arena, Gruel the overseer refuses to give back the Turtles' weapons. But once the Turtles are on the elevator platform, Raphael and Donatello have their weapons stuck in their belts; then the scene switches, and the weapons are gone again just before Traximus unpacks them for the Turtles to take.
Answer: Per Wikipedia, the series originally aired in the US on Fox for its first six seasons from February 2003 to October 2007. However, the main storyline of the series ended after season five. Following this, the show was retooled with a new art style, comedic tone, as well as a new storyline. The show moved to the CW for its final season and aired from September 2008 to March 2010. However, it would not officially end until the broadcast of the TV movie Turtles Forever, which was produced in celebration of its 25th anniversary, and served as a series finale for the show.
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