Ensure balance, Exco member says as 4-part series launched RTHK risked opening itself to accusations of a lack of balance with yesterday's launch of a four-part blog and broadcast by Anson Chan Fang On-sang, an executive councillor warned. The former chief secretary, who has said she will take part in this year's July 1 march, appealed to the public to join Saturday's rally, calling on them to express their aspirations for universal suffrage. She said her political orientation should not be the focus of discussion. 'I want to stress that this is not my personal show. Democracy belongs to all. We should focus on uniting people from all sectors and express our will towards democracy and universal suffrage through peaceful and rational means. It is by doing so that we can convince the SAR and the central governments to make positive response to [our appeals] for electoral reform,' she said. She made the comments on the Civil Society radio broadcast, and they were posted simultaneously on her blog. The public broadcaster's move was greeted with suspicion by Executive Councillor Anthony Cheung Bing-leung, who said similar air time should be given to the organisers of a rival event. Professor Cheung said that, as a public broadcaster, RTHK should offer a balanced view on the topics it covers. 'If Anson Chan was invited by RTHK to voice her aspirations for the July 1 march, it is better for RTHK to invite other organisers, such as [Executive Councillor] Cheng Yiu-tong, the convenor of the July 1 rally, to express their views.' And a government source said: 'As long as RTHK remains a government department, people may take the message as a call by the government to join the march.' Smile Cheung Siu-yung, host and producer of RTHK's Civil Society, said she had been trying to get Mrs Chan to appear on her programme for two months. Cheung said she asked her again after Mrs Chan announced her decision on Saturday to join the march. The producer said Mrs Chan would come to RTHK again today for the second instalment. An RTHK spokeswoman dismissed speculation senior management had invited Mrs Chan to make the broadcasts. An RTHK source said her appearance was an editorial decision by the broadcaster. He said RTHK had asked for public figures or celebrities to express their views on social issues. Mr Cheng had addressed the July 1 march in RTHK programme, he said. 'Of course, Anson Chan has her own calculations on the timing of taking the offer for expressing her views. She might think it was good timing now,' the source added. Meanwhile, a survey by the Public Opinion Programme of the Hong Kong University has found the chief executive's popularity rating has dropped from 68.1 marks out of 100 to 66.3 last week. The number of people who expressed confidence in Donald Tsang Yam-kuen dropped 3 percentage points to 75 per cent, according to the survey of 1,012 people. The poll has a sampling error of 3 percentage points.