Senior external affairs manager SK Chan said the move was due to the station more than doubling the number of its channels since it switched to digital services at the beginning of 2001.
"Digitisation expanded our frequency range, allowing us to significantly increase the number of channels we can offer. The new arrangement we have introduced makes channel-surfing more user-friendly," she said.
Cable TV has been gradually adding channels over the past few years.
Among the more recent additions were Animal Planet, Discovery Travel & Adventure, Discovery Health, Discovery Science and Discovery H&L, joining its flagship channel Discovery, which has been on the pay-TV system since 1998.
The redesigned platform groups Cable TV's offering into eight numbered blocks, containing specific genres - local news and information, entertainment, movies, documentaries, sports, international news, premium packages and international.
Under the system, viewers will have access to a full list of all the channels when they press the 'OK' button on the television remote control unit. By scrolling and pressing the 'OK' button again, they can tune into the channel they want to watch.
Further enhancements, including a programme guide for each block of channels, will be introduced at a later stage.
Chan said that the move was accompanied by a tactical campaign informing people of the benefits of the changes as well as discount packages to entice new subscribers to sign up.
The new platform came into effect just before Chinese New Year this month.
"At the time, we sent out leaflets to our subscribers, booked press ads in mass circulation newspapers such as The Sun and screened on-air promotions," Chan said.
The redesign also allows room for accommodating more channels.
According to Cable TV executive director of cable subscription services Eric Lo: "In designing the new platform, we have allowed room for further expansion, as it is our plan to provide well over 100 channels when we complete our digitisation programme, making our service the most comprehensive in Hong Kong."