Complex sentence: The original version of Game Guru ran until October 15th, 2003, when the Game Network decided to take over production of the program, although AlienPants retained the trademark in the name Game Guru and the program concept.
Split into simpler sentences: The original version of Game Guru ran until mid-October 2003, when the Game Network decided to take over production of the program. Though AlienPants retained the trademark in the name Game Guru and the program concept.