A TELEVISION documentary on social welfare launched yesterday was a direct plea for donations to fill the Community Chest coffers with more than $150 million this year. Starting on Saturday on TVB Jade, the eight-part series Hearts of the City hopes to attract public donations through highlighting problems in the social system. Topics will include the mentally handicapped, women and family, ex-criminals and hospice care. Community Chest executive director Denis Bray said his organisation raised funds for 127 welfare groups. He said Hong Kong's elderly were one group which needed more funds - the Government provides about 80 per cent of elderly care. The Community Chest raised $145 million in donations last year. ''The needs of the Community Chest are increasing much faster than inflation. We can't keep growth down to the level it is currently at because the agency's expenses are very large,'' Mr Bray said. He added that he wanted to see a 20 per cent increase in donations. The documentary series cost $1 million to produce. ''Whatever the Government comes up with, I hope the programmes will show that people in Hong Kong can make a real contribution to those in need,'' he said. ''The important thing is not that everyone gives a huge chunk of money but everyone gives a little.'' Singer Anita Mui Yim-fong and film star Maryanne Yip Sun, who were at the launch, asked the public to give generously. Yip, who is partially deaf, said her focus was on the handicapped.