For televised broadcasts of Walt I would Recommend:
"Walt: the Man Behind the Myth"
"Disney Treasures: Disneyland USA" Has Disneylands opening day ceremonies and other Disneyland shows featuring Walt as the Host.
"Disney Treasures: Behind the Scenes at the Disney Studios" (on this disc includes a rare interview Walt and his employees gave to an Austrilian news broadcaster and shows that take us behind the scenes at the Disney Studios during Walts time)
"Disney Treasures: On the Frontline" (This shows all the propoganda films Walt made during WWII and the DVD host tells interesting facts like how Walts cartoons cause an increase of people to pay their taxes during WWII)