A daytime TV star's mother has been reported missing. Nancy Guthrie, the 84 year old mother of Savannah Guthrie , the co-anchor of the US show Today , has been missing since Saturday night. The authorities in Pima County, Arizona , are searching for Ms Guthrie, who was last seen at her home in Tucson around 9:30pm on 31 January. The 84 year old was reported missing at noon the next day, Sheriff Chris Nanos said in a press conference. According the the Sheriff, Ms Guthrie's home had been