hello, and congratulations to your sister!! I don't know if you can watch them again but you can get a good feel for what is going on with the three different methods as each new part is shown so I'd expect this tuesdays episode to be the same.
My advice is a good well reasearched scientificly based book on child rearing and what effects have been seen in older children, my favourites: The Science Of Parenting by Margot Sunderland Why Love Matters by Sue Gerdhart