We found this DVD series at our library when Clare was a baby and all of our kids have loved them...and still do. (Produced by Small Fry Productions.)
They are 30 minute educational videos and instantly glue all 3 of my kids to the TV screen. (Which also makes them perfect for long car trips. They are something that will entertain the baby, and that the older kids are also fine watching.)
So without further ado I highly recommend these DVDs! The series includes: Colors, Shapes, Opposties, Letters, Numbers, Food Fun, Seasons, Animals, Sounds, and Head to Toe.