Complex sentence: WWE Chairman/CEO Vince McMahon opened the show, thanking the audience both live in the arena and at home for making the 1000th episode of RAW possible before introducing D-Generation X (Triple H and Shawn Michaels).
Split into simpler sentences: WWE Chairman/CEO Vince McMahon opened the show, thanking the audience both live in the arena and at home for making the 1000th episode of RAW possible. Before leaving, he introduced D-Generation X, (Triple H and Shawn Michaels).