Black burst

Also known as color black, bi-level sync.

An analog standard-definition video reference signal used to synchronize compatible video equipment.

In practice

Also called color black, it carries timing and color-reference information without program picture; modern HD systems may instead require tri-level sync or network timing.

Explore related entries

Tri-level sync
Word clock
Genlock

Sources

Connecting Eos Family Consoles to a Visualiser · Electronic Theatre Controls

Educational reference only. Requirements vary by jurisdiction, employer, venue, and production context.