Several couples from Salt Lake's Unification Church will attend the Denver satellite broadcast on Aug. 25 of a huge international marriage ceremony, to be conducted by the Rev. and Mrs. Sun Myung Moon at the Olympic Stadium in Seoul, Korea. "Blessing '95" is expected to include some 360,000 couples worldwide, linked by satellite to the Seoul site. Some 20,000 to 30,000 couples will actually participate at the site.