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)

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)