LOS ANGELES – all3media America, the US arm of global indie all3media, has appointed former National Geographic President of original programming and production Tim Pastore as CEO.   Pastore will report to all3media CEO Jane Turton when he joins the Discovery Communications and Liberty Global joint venture on October 1. He replaces former CEO Greg Lipstone, who exited in January.   During his four-year tenure at Nat Geo, Pastore oversaw all development, production and … [Read more...] about Tim Pastore joins all3media America as CEO