THE VIRGINIAN: AN ECHO OF THUNDER (1966, USA) ***½ Western net. National Broadcasting Company (NBC); pr co. Universal Television; d. Abner Biberman; w. Don Ingalls; exec pr. Frank Price; pr. Cy Chermak; ph. Enzo A. Martinelli (Technicolor. 35mm. Spherical. 1.33:1); m. Franz Waxman; m sup. Stanley Wilson; th. Percy Faith; ed. John Elias; ad. George…