Closed-Circuit Television, otherwise known as a video camera directly attached to a monitoring system; usually seen in security systems. These video cameras have only the basic of features.

Used to describe (generally female) imagery that's suggestive, but in a PG-13 sense rather than an R or above sense.

China Central TV, whose new creepy-looking tower is more or less completed now somewhere in Beijing.

CCTV when seen on dating channels means Can't see TV, so users can only see messages sent to their inbox, not on the tv.