Dick Ebersol Special to the Director's Cut Blog By Rachel Cohen, AP Sports Writer NEW YORK (AP) - Dick Ebersol has resigned as NBC Sports Group chairman, an industry giant who helped launch "Saturday Night Live" and built the network into the home of the Olympics over the past two decades. "I had a long run and loved every bit of it," Ebersol said in a phone interview with The Associated Press on Thursday. Ebersol said he couldn't agree to terms on a new contract with Comcast, which merged with NBC earlier this year. The network said NBC Sports Cable Group president Mark Lazarus would take over for Ebersol. Ebersol ran NBC Sports since 1989, and his departure comes just three weeks before the International Olympic Committee opens bids on the next set of lucrative Olympic broadcast rights in the United States. "It comes as a complete surprise," said Richard Carrion, the IOC executive board member who negotiates U.S. rights. He said Com...