Complex sentence: On May 23,1999 the episode premiered in the United Kingdom and Ireland on Sunday and gathered 860 thousand viewers, making it the fourth most watched episode that week, behind "ER", "The Simpsons" and "Friends".
Split into simpler sentences: On May 23,1999 the episode premiered in the United Kingdom and Ireland on Sunday. The episode was the fourth most watched episode that week, behind "ER", "The Simpsons" and "Friends".