The search is on for a fifth woman on "The View." Co-host and executive producer Barbara Walters announced Friday that 10 to 20 women would appear on the ABC morning talk show for tryouts this fall. The new cast member will be introduced live on Nov. 26. Lisa Ling, the youngest co-host, left in December and is now working for National Geographic (news - web sites) Explorer. The new woman will team with Walters, Meredith Vieira, Star Jones and Joy Behar. Before the co-host search, a number of celebrities have filled the chair, including singer Mariah Carey (news), actress Whoopi...