Watch (Direct TV) KCAU ABC 9 News Sioux City, IA local breaking news update Channel Live stream Online. You can also find a radar weather forecast which presents the Girls Team. KCAU Channel 9 ABC News live streaming online is an ABC-affiliated television station that works in Sioux City, Iowa, Nebraska, South Dakota, areas of the United States. It telecast its transmission on virtual 39 (VHF digital 57). It is owned by the Nexstar Broadcasting, Inc media network group and works under the supervision of a shared services agreement (SSA). KCAU has two shared production studios located on Gordon Drive in Sioux City. KCAU transmission house is located near Hinton, Iowa. The station began telecasting on March 9, 1953, with the theme of (Siouxland Proud).