vMix - The vMix Software Video Mixer and Switcher is the complete live video production software solution.
QLab - QLab, Live show control for Mac OS X.
DVSwitch - DVswitch is a digital video mixer intended for interactive live mixing of several incoming DV video...
Cue Player - Cue Player software for theater sound and lighting
mimoLive - Imagine if you had a full blown TV studio at your disposal.
Trigger Audio and Video Playback - Audio and video cue player for broadcast and live performance.