Is there a product(s) to stream recorded videos, all at same given point in time
I did find a product called Calypso by Haivision

http://www.haivision.com/products/record-stream/calypso

I've spoken with their tech support and they claim it can do the time sync functionality I desire.

I recognize this product will be out of the price range for some looking for the same sort of thing.  The multiscreener app screaming drills mentions above looks promising, as does some other software products that website mentions.  I just do not have the time to check them out.