While Cable TV is able to show sex programmes on its adult channel, the broadcasting watchdog has rapped it over the knuckles for showing violence and sex on another service. The Broadcasting Authority warned the station about a feature film with 'gratuitous and excessive' sex and violence on a pay-per-view channel. It said the Cantonese-language movie, Diary of a Serial Killer, was unacceptable on the Cineplex channel, which did not have controls preventing children from tuning in. The film had scenes showing rape, torture and the skinning of a person, said an authority spokesman. But Wharf Cable defended its broadcast. 'The problem arises from a different interpretation of standards,' said spokesman Garmen Chan Ka-yiu. A number of scenes had been cut before the show was aired, he said, and viewers were warned of violence and sex before programmes started. Action was also taken against TVB and ATV at the Broadcasting Authority meeting. ATV Home was advised - the mildest form of action - for showing violence in the morning during school holidays when a large audience of children were likely to be watching. The Japanese drama Doctor Kumahige showed a woman being stabbed with a broken bottle, and blood as well as close-up shots of blood dripping from the cut glass. TVB Pearl was advised for showing a promotional item for Bram Stoker's Dracula with shots of a disfigured head which the authority said might scare children. TVB Jade was advised for showing a violent feature film, Return to a Better Tomorrow, during family viewing hours rather than after 9.30 pm. An advertisement for a Chinese medical centre on ATV had to be amended so it did not mention hair and scalp treatments, which are banned on television.