A hero and a morning staple for me, Bob O'Brien was Captain Kangaroo played by Bob Keeshan. It aired every weekday morning on CBS, and I watched part of the show every morning before going to school. The Treasure House was a warm and loving place, full of fun characters such as Mr. Green Jeans, Bunny Rabbit, Mister Moose, Magic Drawing Board, and Grandfather Clock. Ah, memories. And that wonderful and memorable theme song? Here it again by clicking below. Keeshan would've been 90 today.