GUNSMOKE: CHATO (1970, USA) ****½ Western net. CBS Television Network; pr co. CBS Television Network; d. Vincent McEveety; w. Paul F. Edwards; exec pr. John Mantley; pr. Joseph Dackow; ph. Monroe P. Askins (Colour. 35mm. Spherical. 1.33:1); m. John Carl Parker; th. Rex Koury (uncredited); ed. Gerard Wilson; ad. Joseph R. Jennings; set d. Herman…