David Mamet is rebooting Have Gun — Will Travel for CBS. Westerns! They are making a comeback, sort of: Quite a few have gone into development, but not very many have actually aired. The original Have Gun was a staple from 1957–63, and should this version make it to broadcast, Mamet will direct the pilot and serve as executive producer. It’s his first show since The Unit, which ended in 2009. Quick, someone reboot Bonanza, Gunsmoke, and Pony Express, too, so we can all argue over which is the best. (Duh, it will still be Deadwood.)