Need some advice

Hi all, I am a newbie so bear with me.

I have a project that requires me to setup a live stream of events for a certain company. The content must be able to broadcast live or stored as an On-Demand feature.

However I have no knowledge of setting up a live stream server. Therefore I need some advice on how to do so.

Eg: what protocol to use, what hardwares and softwares are needed, bandwidth, compression format etc...

Any advice is greatly appreciated.