Complex sentence: His most successful creation, "Winx Club", debuted in 2004 and became a worldwide success, now broadcast in over 130 countries, including Europe, the United States and most of Asia.
Split into simpler sentences: His most successful creation, "Winx Club", debuted in 2004, and became a worldwide success. It is now broadcast in over 130 countries, across Europe, the United States and most of Asia.