I need to correct myself on two points. Although better known as a fitness expert, Bonnie Prudden did host a talk show in 1969, so that listing is correct. Likewise, "Truth or Consequences" did air on Channel 4 at 4 PM; I had forgotten about that. I remember it airing at 6 PM on Channel 8 around 1972. That station replaced it with "Beat the Clock" in 1973, just before the channel switch, and then "Concentration" when "Beat the Clock" ended in 1974.