NPR's Phillip Martin reports on the continuing controversy over the shortage of minorities on new fall television programs. With black and Hispanic civil rights groups demanding change, network executives are on the defensive this week as they unveil their fall line-ups to tv critics. CBS denied it was part of the problem because of the range of feature minority characters on it's programs. ABC announced it would add five minority characters to some new shows, but said the action was planned even before the protests. NBC issued a statement that called the inclusion of minorities "a top priority". Meanwhile, black and Hispanic civil rights groups are calling for boycotts to force networks to reflect the diversity of their audiences.