Watch HDToday. After years of painstaking research, Dr. Robert Ballard finally located the ill-fated R.M.S. Titanic, nearly two-and-one-half miles down the icy Atlantic. Here in this short documentary he covers Titanic's dramatic end and enduring legend, slow sinking into the ocean taking over three hours on a clear night and the people onboard who really made the story. Produced by National Geographic Television, 1997