However , NBC coverage of the assassination of Martin Luther King , Jr. preempted the program , with producers holding the episode until the following season .
This episode was originally scheduled to be the final show of the second season on April 4 , 1968 .
NBC coverage of the assassination of Martin Luther King , Jr. preempted the program , with producers holding the episode until the following season .
This episode was originally scheduled to be the final show of the second season on April 4 , 1968 .