The wiggles are old school.....check this out
http://www.myspace.com/yggmusic
Not saying it is the absolute best show out there but if I am going to sit through a kids show I like the idea of discovering new bands as I do it.....They teach a lot of core values on this show and the characters are wacky and out there but I think that is the appeal for the kids. I don't think the adults we watched growing up could hold the attention like these characters do. To learn you have to get their attention and keep it. Another reason I would point to for kids behavior these days, which I haven't really noticed as being worse or better then when I grew up, is the food they eat. They have way more sugar in their diets then we did. That may be the theory that you can undoubtedly prove!