We are all familiar with incidents involving UFOs and extraterrestrial life. Such incidents have been reported throughout history. “UFO Hunters,” a new series on The History Channel, follows a group of experts as they subject some of history’s most intriguing UFO accounts, and the evidence surrounding them, to exhaustive scrutiny in an effort to uncover the actual facts. The series is a spin-off from the network’s hit program “UFO Hunters,” which premiered in 2005. The new HD series “UFO Hunters” airs Wednesdays at 10pm/9c on The History Channel.