BOSTON -- A former Boston sportscaster was arrested Thursday and charged with possessing child pornography.

Robert Gamere, 69, of Brookline, was charged in a three-count indictment with transportation and possession of visual depictions of minors engaged in sexually explicit conduct, according to U.S. Attorney Michael J. Sullivan.

Gamere, who worked for WNAC, which was Channel 7 at the time, is accused of transporting videos of child porn on two separate days in 2007. Officials said that he also possessed images and videos of child pornography in January 2007 on his home computer.

During a court appearance Thursday, prosecutors said Gamere had been sending people e-mails with child pornography videos as attachments.

Federal agents executed a search warrant on Gamere's home in 2007 and seized a computer, on which they found images and videos of child pornography. In addition, the agents found printed out images of child pornography in a locked bedroom drawer.

During the search, Gamere admitted that he had e-mailed child pornography and that the printed images in his bedroom belonged to him.

Documents unsealed in federal court reflected that Gamere first came to law enforcement attention when an undercover agent received an e-mail with a video of child pornography attached. The agent was able to determine that the same video file had been sent previously by the screen name GreatGamere, which was subsequently traced back to Gamere.

The documents showed that he had sent that video to himself every month, for nine months, before sending it along to someone else, Sullivan said. During the search, Gamere allegedly told officers that he did that in order to make sure that AOL did not delete the child pornography video from his e-mail account.

If convicted, Gamere faces a minimum sentence of five years and a maximum sentence of 20 years on the transportation counts and a maximum sentence of 10 years on the possession count.

After posting $100,000 bond, Gamere was released Thursday on home confinement with electronic monitoring with the condition that he have no unsupervised contact with any minors and no use of the Internet.

Gamere was also the host of "Candlepins for Cash," which aired on WNAC. In 1989, he was fired from WLVI after charges of assault and sexual harassment were brought against him by a Malden man.