Anchors | NBC Affiliates | Top 10 Kristi Nelson of KXAS Donates Kidney to Her Mother By Merrill Knox on Aug. 17, 2011 - 2:24 PM Kristi Nelson — an anchor at KXAS, the NBC owned-and-operated station in Dallas — will undergo transplant surgery tomorrow in order to donate a kidney to her 69-year-old mother. Nelson’s mother Helen currently ...