There he goes - Gary Collins, leaving the Miss America Pageant. Collins, who has been host of the September beauty contest since 1982, also is host of the daily program "The Home Show" and says he just doesn't have enough time for Miss America. Leonard Horn, chief of the Miss America Organization, called Collins "an oustanding host" and said no replacement has been chosen. Collins, who is married to 1959's Miss America, Mary Ann Mobley, took over the pageant job from Ron Ely, who had replaced longtime host Bert Parks.