GARDEN CITY - Some local fans of Oprah Winfrey gathered today in Garden City to witness a historic moment when one of the most influential women on TV signed off the air after 25 years. Winfrey started off her final show on a somber and reflective note before playing some clips from her early shows that got big laughs."I've watched her go from the beginning stages to where she is today," says Lisa Boudreau, of Garden City. "And I always felt there was a part of me that felt she empowers people."Sissy Godbolt, of Hicksville, says she learned a lot from Winfrey over the years and drew courage from her to start over after her divorce. The viewing party for the fans of "The Oprah Winfrey Show" was organized by the Long Island Surgical Group.Winfrey will be back on TV on her own cable network, OWN.