also: そうほうこうケーブルテレビ
noun
bi-directional CATV; two-way cable television
Technical term in computing and broadcasting for cable TV systems that support upstream and downstream communication.
双方向ＣＡＴＶは、インターネット接続にも利用される。
Bi-directional CATV is also used for internet connections.
CATV refers to cable television in general; 双方向ＣＡＴＶ specifically denotes systems with two-way communication capability.
Compound of 双方向 (bidirectional) and the acronym CATV (cable television).