"Conagher," directed by Reynaldo Villalobos and appearing on television in 1991, features Sam Elliott as Conn Conagher, a quiet cowboy facing off against rustlers (including Gavan O'Herlihy) while also being mindful of a widow raising her two children alone on a distant ranch (played by Katharine Ross). Despite being a Turner production for TNT, the film doesn’t feel like your typical made-for-TV movie. It foresha…