JVC KM 2000 composite video mixer.
Information
Analogue composite video mixer
8 main video inputs
3 main video outputs
genlockable (to composite video, or using all the various sync signals from an external SPG ) or self-contained from it's own internal SPG
3 blackburst outputs
three program buses (one upstream mix/effects, one downstream mix)
one preview bus
upstream lumakeying
upstream chromakeying from an RGB key source
downstream title keyer
all mixable inputs require synchronous (genlocked) video sources

(Available Manual)