cctv

US /ˌsiː.siː.tiːˈviː/
UK /ˌsiː.siː.tiːˈviː/
"cctv" picture
1.

a television system in which signals are not publicly broadcast but are monitored, primarily for surveillance and security purposes

:
The bank has extensive CCTV coverage.
Police are reviewing CCTV footage from the crime scene.