Ultraseven X (ＵＬＴＲＡＳＥＶＥＮ Ｘ（ウルトラセブン エックス） Urutorasebun Ekkusu?) is the 21st entry in the Tsuburaya Productions' long-running Ultra Series. It is a revival of the 1967 classic Ultra Seven, and is the first in Tsuburaya Productions' Ultra hero series to be exclusively for an adult audience and in wide screen high-definition format. The show first aired on October 5, 2007 at 2.15am on CBC and 2.25am on TBS.