Movie stars just aren't what they used to be, Barbara Walters suggested in an interview with Reuters days before her 29th and final Oscars special is due to air on ABC. Walters told the wire service that she had decided to end The Barbara Walters Special , which will air Sunday featuring Sandra Bullock and Mo'nique, because she felt that there were no longer any big "gets" to be got. "I felt ... that I had interviewed the greatest stars and that wasn't so special anymore," she said. "Now there are so many entertainment programs and the stars are on almost everything." And many of them, she noted, make TV appearances after coming out of rehab. "I didn't want to do that"