Truth or consequences, NM
Last Chance, Colorado.
Originally named Hot Springs, the city changed its name to “Truth or Consequences”, the title of a popular NBC Radio program. In March 1950, Ralph Edwards, the host of the radio quiz show Truth or Consequences, announced that he would air the program on its 10th anniversary from the first town that renamed itself after the show; Hot Springs officially changed its name on March 31, 1950, and the program was broadcast from there the following evening.
Extra Credit: What was it originally called?
Some travelers call it "torque," as they are misinterpreting the freeway sign that says "T OR C."