Complex sentence: In 1997, he wrote and hosted the instructional video, "The Games We Used to Play", which teaches children how to be healthy by inspiring them to play the physically active games that were be played before the advent of video games.
Split into simpler sentences: In 1997, he wrote and hosted the video, The Games We Used to Play. This instructional video teaches kids how to be healthy by inspiring them to play the physically active games that used to be played before the advent of video games.