Video at Events (Regionals & districts)

[IKE]

I am looking for some information on how the main video feed is produced at FRC events. I have generally seen the video stands, and I know that there is often a panel that brings the video together, and someone must select what goes into the main feed. Who does this stuff?

The reason I am bringing this up is that with video cameras getting smaller and better, and memory getting cheaper, I have recently noticed some 4 & 8 channel surveilance systems that seem like they would be a good way to record some FRC events for later use. This year and last year, I would have really liked at least 3 stationary views:
3/4 full field looking at red scoring, 3/4 full field looking at blue scoring, and then 1 side profile capturing true full field.

Can someone fill me in on how current video is produced at an event?
Has anyone tried the security camera route? One of the events in California that I saw on a webcast sturck me as attempting this kind of footage.