The Emmy-winning HBO comedy "Hacks," about the travails of comedian Deborah Vance and her writer, Ava, is launching its fifth and final season. Correspondent Tracy Smith talks with stars Jean Smart and Hannah Einbinder about saying goodbye to roles that were a match made in comedy heaven. Smith also talks with the show's co-creators: Jen Statsky, Paul W. Downs and Lucia Aniello (who describes directing one episode while in labor).