Complex sentence: The finalists performed live on Saturday evenings, with one gender performing each week, and each week the contestant polling the fewest phone votes was eliminated, until the final line-ups of the five-piece groups emerged.
Split into simpler sentences: The finalists performed live on Saturday evenings, with one gender performing each week. Each week, the contestant polling the fewest phone votes was eliminated, until the final line-ups of the five-piece groups emerged.