Jeff Peckman says aliens are real and he says he has proof.

The Denver man held a news conference there Friday morning to show only those journalists allowed in the room a video by Stan Romanek taken July 17, 2003 in Nebraska in which Peckman says shows a visitor from out of this world.

"It starts out with a digital camera looking out across the room toward a window," Peckman described the video to ABC News. "There's a couple of flashes of light. After a few seconds, there is a small head clearly rising above a sill, panning the room, blinking its eyes, all slowly."

While the news conference was recorded, Alejandro Rojas, the education director of MUFON, the Mutual UFO Network, asked all cameras be turned away from a viewing screen when the video of the purported Alien sighting was played for the assembled media.

Denver Post reporter Kirk Mitchell described the viewing this way: "Over the course of three minutes or so, the footage shows a white creature with a balloon-shaped head that keeps popping up and down in a windowsill that was eight feet above the ground. The face was white, with large black eyes that seemed to blink."

About 50 journalists were in the room for the screening, including up to 20 TV cameras, according to Mitchell's report.

This is part of a larger education effort by Peckman, who wants Denver voters to set up a commission to prepare for visits from space aliens. He says the video convinced him there is life on other planets. The video will be part of a documentary in production that claims to have supporting evidence of an alien visit.

Peckman is proposing an 18-member Extraterrestrial Affairs Commission for Denver.

Peckman, who makes his living selling a new technology he says reduces "the chaos of electromagnetic fields," needs to gather 4,000 signatures to get the proposal on the ballot. Even if he fails, Peckman said, the effort will educate people about the existence of aliens.

"I just did a radio interview with a South Africa talk show, and the discussion is all the same," he said. "People call in. They say, 'Yes, I've had this experience. We know the government has been hiding this information.' It's time to bring it out."

The Associated Press contributed to this report