Season 4

Season 4 contains the following episodes:
 * 38. Boxy Boxy Back! Part 1
 * 39. Boxy Boxy Back! Part 2
 * 40. Boxy Boxy Back! Part 3
 * 41. The End Part 1
 * 42. The End Part 2
 * 43. The End Part 3
 * 44. Africa Part 1
 * 45. Africa Part 2
 * 46. Africa Part 3
 * 47. TBATE Part 1
 * 48. TBATE Part 2
 * 49. TBATE Part 3