The DHARMA Initiative station where survivors watched a television monitor in Lost was the Pearl. The underground station contained surveillance equipment, observation rooms, and a system of video recordings that showed activity at other DHARMA facilities.
The survivors discover the Pearl during the second season. Its orientation film claims that personnel should observe psychological experiments at another station and record their findings. The station therefore appears to support DHARMA’s research into human behavior, although later discoveries make the official explanation more complicated.
The Pearl is often confused with the Swan, where Jack and Locke enter numbers into a computer, or the Staff, which serves as a medical facility. The Hydra is another DHARMA station, located on a separate island and associated with animal research and the Others. Each station has a distinct purpose within the Initiative’s wider island operation.