Desperate Housewives' Eva Longoria has allegedly ticked off ABC bigwigs by sitting down for an interview with NBC's Dateline. "This is a major breach of protocol," a source tells the New York Post, explaining that ABC's Primetime or 20/20 should have first crack at the network's stars. "We think [she did it] because Dateline focused on her and no one else on [Housewives]." In retaliation, unreliable sources say ABC is thisclose to signing Andy Dick to play Gabrielle's new gardener.