Anthony “Tony” Eugene Amatullo Jr., a former Warner Bros . executive and producer who worked on TV shows including “ER” and “The West Wing,” died Sunday in Manhattan. He was 76.  His son, Nicolas Amatullo, confirmed the news.  Amatullo had a long and successful career as a line and executive producer. He first worked as a location manager for commercials, television and film, with credits like “The Goonies” and “The Color Purple,” before serving as an associate producer on TV series including “Fame” and “Miami Vice.” He worked across Hollywood studio lots, including MGM, Paramount, and Disney, before later becoming Vice President of Production at Warner Bros.. There, he worked on “ER,” “The West Wing,” “Third Watch” and more.  In a statement shared by Nicolas, he wrote that his father “often compared producing to walking a tightrope — balancing creativity, logistics, and big personalities.…