Complex sentence: During the eight years he was the host of Trucks!, the show became one of the highest rated shows on Spike TV's weekend lineup partially because Stacey both designed and built his own projects, unlike many other shows during the same time frame.
Split into simpler sentences: During the eight years he was the host of Trucks!, the show became one of the highest rated shows on Spike TV's weekend lineup. This was due, in part, to the fact that Stacey both designed and built his own projects, unlike many other shows during the same time frame.