Background: Criss Angel was born on December 19, 1967, at Hempstead General Hospital in Hempstead, on Long Island, New York. He is of Greek descent. Angel was raised in Elmont until fourth grade, when his family moved to East Meadow, New York. His father, John Sarantakos, owned a restaurant and doughnut shop.
Context: Angel has said that, "I stayed away from magicians when I was younger because I didn't want to think like them and wanted to create my own style." His first television appearance was in 1994, where he performed as a part of a one-hour ABC primetime special entitled Secrets. One of the early supporters of Angel was horror director Clive Barker. In 1995, Barker asked Angel to work with him on his film Lord of Illusions. He also later recorded the intro to Angel's album World of Illusion: System One. Barker said of Angel in the mid-1990s that, "Criss Angel is extraordinary, a spectacular mix of visionary magic. This is the future, and it can't come quickly enough." During that year, he collaborated with musician Klayton to form Angeldust, a show that combined magic with music. They released their first album Musical Conjurings from the World of Conjuring in 1998. Also that year, Angel performed a ten-minute show over the course of the "World of Illusion" conference in Madison Square Garden, performing sixty shows per day. However, by 2000, Klayton's name was removed from Angel's website.  Angel also starred in the 1997 television movie The Science of Magic and its 2003 sequel The Science of Magic II. Criss Angel Mindfreak, which would later become Angel's first television series, was originally an off-Broadway show by Angel, which in 2001 was picked up by the World Underground Theatre. When not performing the show, Angel worked the streets promoting the show to pedestrians. Criss Angel Mindfreak ran for more than 600 performances between 2001 and 2003 at the World Underground Theater in Times Square. His twenty-four hours in a tank of water set a world record for the longest amount of time for a human to be completely submerged under water. This performance would also become a part of his first television special.  Angel has also been known to actively discourage a belief in mediumship, stating that there is no way for mediums to speak with people beyond the dead. He has said, "If somebody's doing that for entertainment purposes, that's one thing. But if they claim to be communicating with the dead, I don't care if they're from my hometown, I don't care if they're my family members: I'll expose them and tell them what they really are."
Question: What did he do?

Answer:
where he performed as a part of a one-hour ABC primetime special entitled Secrets.