The story of "Big Al," is a big hit with my 4-year-old son (and with me). This program was not produced specifically for kids, but the narration is clear and obviously comprehensible to viewers of all ages. I'm a big believer in not "dumbing-down" dialogue for the sake of children. Kids become motivated to learn -- and they do learn -- when they are challenged to understand what's going on around them. My kids want to know what mom and dad are talking about and what's going on in the world. So, they wrestle with the concepts that elude them and ask questions to fill in the blanks. "Allosaurus" has obvious dinosaur appeal, and it's truly educational and challenging. Some scenes deal with injury and death. I'd recommend that you preview the disc before showing it to your own children. In that vein, I recommend that you avoid "Walking with Prehistoric Beasts" for your kids. It's far more violent and intense than "Allosaurus."