https://www.amazon.com/Dragon-Ball-Tien-Shinhan-Saga/dp/B0002EJ8IE

Here’s a link to just one of the sagas. You can find them all on Amazon or Ebay. Keep in mind though the King Piccolo and Piccolo Jr dvds are the most expensive sets. I also wanted them to have their little booklets inside because they list the episode names and a description of that episode. They are a little more trouble to collect than the standard Blue bricks that funimation replaced these with