Locke guested on top-rated television drama series throughout the first half of the 1970s, including "The F.B.I.", "Cannon", "Barnaby Jones" and "Kung Fu". She was advised by her agents to stay away from TV, but thought it silly to sit around not working between films. In the 1972 "Night Gallery" episode "A Feast of Blood", she played the victim of a curse planted by Norman Lloyd; the recipient of a brooch that devoured her. Lloyd acted with Locke again in "Gondola" (1973), a racially themed, three-character teleplay co-starring Bo Hopkins, and commended the actress for "a beautiful performance – perhaps her best ever." Ron Harper, who worked with Locke on the short-lived 1974 show "Planet of the Apes", was even more effusive: "After acting with her in a couple of scenes, there was something so feminine about her that I could picture myself easily falling for her ... She's one of those women who exudes femininity, and you just become so attracted to that."