This is a much better collection than I was expecting! The segments are on baseball (friction), the Teacher-athalon (cardiovascular health), and (only loosely sports/games related) artifacts. I'm anxiously awaiting the DVD release of a collection with "Inside Ralphie", and the one on cardio-health is an ok substitute while we wait. For some reason, it seems like several of the most popular episodes are yet to be out on DVD... I wonder why? None of these are particularly outstanding, but they are all quite good and easy to watch, repeatedly, as toddlers & preschoolers tend to want to do. The manufacturer thinks this is for kids 6&up I believe, but I would say it may be more entertaining for maybe the 4-5 crowd. My almost-2 and almost-4 year olds watch them and probably don't get most of the science, but it still encourages them to ask questions and they do pick up on a fair amount of the "simpler" content.