A TELEVISION host and two other men were released on bail yesterday after being questioned on Friday morning during an investigation into a male prostitution service. Eleven others arrested with the three men at the private Causeway Bay ''gigolo'' club were released unconditionally. Robert Hung used to host a late-night magazine programme on ATV, A Vigorous Life With Great Fun. Officers from the Organised Crime and Triad Bureau raided the Kingston Street club and picked up the 14 people as part of an on-going operation.