Star TV is being investigated by the telecommunications watchdog following customers' claims that they were tricked into buying thousands of dollars worth of equipment.
The station is accused of misleading viewers into buying expensive decoders and satellite dishes to receive a range of television channels - most of which were axed two months ago.
The Office of the Telecommunications Authority (Ofta) said yesterday several people had complained about the change to programming. It is investigating whether Star breached the Advertising Code or telecommunications laws when inviting customers to buy the equipment.
The South China Morning Post revealed in May that Star was axing seven of the eight channels that about 1,000 families had been receiving. They included movies, sport and a channel of British programmes, leaving only Star World.
Star subscribers initially were given about a week's notice of the change; an outcry followed and the service was extended for about three weeks but now has been discontinued.
Furious viewers say Star World - which features shows such as the Bold and the Beautiful and the Oprah Winfrey Show - is usually not worth watching. They say it is certainly not worth the thousands they spent only two years ago on set-top decoders and satellite dishes to receive the service.