Complex sentence: Since then, Willis has performed over 2000 times at comedy venues and festivals throughout the world, as well as live stand-up, he also performs 2 specialist computer comedy shows "Control-Alt-Delete" and "PC Mac and me".
Split into simpler sentences: Since then, Willis has performed over 2,000 times at comedy venues and festivals throughout the world, as well as live stand-up. He also performs 2 specialist computer comedy shows "Control-Alt-Delete" and "PC Mac and me".