noun
closed-circuit television; CCTV
Refers to a private, closed-circuit television system used for surveillance or internal broadcasting, not for public broadcast.
このマンションには有線テレビが設置されていて、エントランスの様子が各戸のモニターで見られます。
This apartment building has a closed-circuit television system installed, so residents can see the entrance on their monitors.
noun
community antenna television; CATV; cable TV
A system that delivers television programming to multiple households via coaxial or fiber-optic cables; often used interchangeably with ケーブルテレビ in modern Japanese.
山間部では有線テレビが地上波放送の受信手段として使われている。
In mountainous areas, community antenna television is used as a means of receiving terrestrial broadcasts.
noun
pay TV; subscription TV
Television service provided for a fee, often via cable; in Japanese, 有料放送 or ペイテレビ are more common for the general concept, but 有線テレビ can imply pay TV when the context is cable-based subscription services.
有線テレビの契約をすると、専門チャンネルが視聴できるようになる。
If you subscribe to pay TV, you can watch specialty channels.