Christina Munoz is the guest morning co-anchor atKARK/Channel 4/Little Rock this week. Munoz left KATV/Channel 7/Little Rock 2 and half years ago to become the Associate Vice President of Communications, Public Relations, and Marketing at the University of Central Arkansas. Several former Little Rock anchors have been filling in the past couple of weeks in the absence of Aaron Nolan as he as been reporting for the Nexstar stations from the Olympics.