Leonardo Lightens Up (S04E19)

S04E01 Plan Six From Outer Space S04E02 Turtles of the Jungle S04E03 Michaelangelo Toys Around S04E04 Peking Turtle S04E05 Shredder's Mom S04E06 Four Turtles and a Baby S04E07 Turtlemaniac S04E08 Rondo in New York S04E09 Planet of the Turtles S04E10 Name That Toon S04E11 Menace, Maestro Please S04E12 Superhero for a Day S04E13 Back to the Egg S04E14 Son of Return of the Fly II S04E15 Raphael Knocks 'em Dead S04E16 Bebop and Rocksteady Conquer the Universe S04E17 Raphael Meets His Match S04E18 Slash the Evil Turtle from Dimension X S04E19 Leonardo Lightens Up S04E20 Were-Rats from Channel 6 S04E21 Funny, They Shrunk Michaelangelo S04E22 The Big Zipp Attack S04E23 Donatello Makes Time S04E24 Farewell, Lotus Blossum S04E25 Rebel Without a Fin S04E26 Rhino-Man S04E27 Michaelangelo Meets Bugman S04E28 Poor Little Rich Turtle S04E29 What's Michaelangelo Good For? S04E30 The Dimension X Story S04E31 Donatello's Degree S04E32 The Big Cufflink Caper S04E33 Leonardo VS Tempestra S04E34 Splinter Vanishes S04E35 Raphael Drives 'Em Wild S04E36 Beyond the Donatello Nebula S04E37 Big Bug Blunder S04E38 The Foot Soldiers Are Revolting S04E39 Unidentified Flying Leonardo