What configuration needs to be assembled for video broadcasting?

Question

Video broadcast

Good afternoon!
For the seminar it is necessary to organize a video broadcast. Quality, of course, is important, because. will be broadcast incl. the code. In theory, it goes something like this:

• I take two laptops: one for code, the second for broadcasting
  
• I also take a video camera.
  
• Somehow I start the video stream from the camera to the first laptop
  
• There you also need to send a video stream from the second laptop
  
• On the first install specialized software (there is a list on youtube than to broadcast on them)
  

During the seminar on the second laptop (where the code is) I do a duplication of the image. So that the copy goes to the first. There, in the special program, I select the active stream - the code or the general view camera. The program meanwhile sends everything to Youtube.com
Questions:

1. It is quite possible that you already have experience and can give the whole harness. I will be extremely grateful.
   
2. Need to understand what to broadcast? What camera? There are hundreds of cameras on market.yandex.ru, and many of them support broadcasting via USB/WiFi. But I have no idea, do they stream into their own programs a la "baby spying" or can anyone eat their stream?
   
3. How to transfer the screen stream of the second laptop to the first so that it is eaten by the video broadcasting program? Do not offer RDP: these are lags and are unlikely to be supported by broadcast software
   

Answer 1

I just realized that I have a Sony NEX 5N camera that has an HDMI output. This is definitely a plus. In the evening I will check how it works in HDMI mode.