"Circuit television" refers to a system of cameras and monitors that are connected in a closed loop, allowing surveillance or monitoring of a specific area or location. It is commonly known as CCTV. Full definition
The same is true of the taking of evidence from vulnerable witnesses via closed circuit television from another room. (slaw.ca)
This concept vehicle had large, 20 - inch wheels, a centrally located instrument cluster, and a closed - circuit television system within the windshield pillars replacing conventional rear view mirrors.. (en.wikipedia.org)
Fifty - one - channel video installation (including one closed - circuit television feed), custom electronics, neon lighting, steel and wood; color, sound. (museumpublicity.com)