Hugh Downs’ frequent assignments for NBC News caused him to miss many tapings of Concentration, especially in 1968, as Downs reported on the Democratic national convention and the assassinations of Robert F. Kennedy and Martin Luther King Jr. When Downs left Concentration in the late 1960s, Clayton was promoted to full-time host, having been the game show’s announcer since 1963. Except for Ed McMahon’s six-month run in mid-1969, Clayton stayed with Concentration until its cancellation in 1973. He died in New York on 1979 November 01, of cardiac arrest.
Gary Eisenberg has shared two memories of Bob Clayton. One is that NBC wanted Ed McMahon to succeed Hugh Downs as host of Concentration, but Downs knew that only Clayton’s rapport with the Concentration audience equaled his own. The other is that when Clayton was to be a panelist on The Hollywood Squares, which aired later in the morning on NBC, he said to his home viewers, “I’m not sure how I am going to get across the country in an hour.”
Before Concentration, Clayton was the host of an obscure ABC game show called Make a Face in 1961. In the 1970s, he was the announcer for a few other game shows, including The $10,000 Pyramid and Three on a Match. William Padron has contributed more information on Clayton to the PyramidGameShowFanClub Yahoo! Group.