u/FullAutoOctopus

So I have been trying to remember these videos I used to borrow from my local library as a kid. They were set in a small town, a young boy was the lead, and he was always investigating mysteries. The one I remember the most revolves around baseball cards. I think in this one there was somebody trying to scam expensive cards or was stealing them. I recall a convention set up possibly. This is about all I can remember, no idea if anybody can help me.