Qin Shi Huang, the first emperor of China, starting planning his burial back when he was king of Qin in 247 BC – and expanded his plans to astounding proportions once he rose to emperor 26 years later. A subterranean city was built by hundreds of thousands of workers, and filled with deadly traps, the emperor’s body, and, standing guard, a virtual army of terracotta warriors. Tonight’s Nova spends time in that amazing mausoleum – and I plan to spend time watching tonight’s program. Check local listings.