"Waltons" cast members and series creator Earl Hamner look back at the iconic family drama and assess its impact on American culture. They also talk about what they have been doing since the 1972-81 CBS series ended its run. Mary McDonough (Erin) hosts. Also appearing: Richard Thomas (John Boy), Ralph Waite (John), Michael Learned (Olivia), Judy Norton (Mary Ellen), Eric Scott (Ben), Jon Walmsley (Jason), David Harper (Jim-Bob) and Kami Cotler (Elizabeth).