The talk shows will be recorded in RT America's Washington studios and producer Ora TV's studio in Los Angeles.
The network said both programs will also stream online at Hulu.com, Ora.tv and rt.com.
"I have always been passionate about government and issues that impact the public, and I'm thrilled at the opportunity to talk politics with some of the most influential people in Washington and around the country," King said in a statement. "I look forward to bringing these invigorating conversations, as well as my 'Larry King Now' interviews, to television audiences with RT America."
"We are thrilled to work with Larry King, who is a true media legend," said Margarita Simonyan, RT's editor-in-chief. "Whether a president or an activist or a rock star was sitting across from him, Larry King never shied away from asking the tough questions, which makes him a terrific fit for our network."