I thought I would share this website as a resource for early learning. It includes topics such as math, science, music etc. Overall, it is quite inexpensive compared to many products out there and it really appears to target children well.
The link is:
There are free demos to view for those interested.
(By the way, I have no financial or familial interest in this site.)
I did look at a few of the clips. I like the photosynthesis song 
The DVDs are $5.99 and CD/DVD combos are $7.99, which is pretty cheap.
type in peter weatherall into youtube and you can see many clips.
Yes, the clips are good, but the actual DVD’s have sooo much more information and are of a better picture quality. My son loves the way they are presented (specifically "simple science and more simple science DVD’s) I’m even learning from them!
Thanks