Interactive tv ?

[Shieriker]

im looking for a term, When the people is part of a live broadcast,(when people use twitter and their "tweet" shows up in a tv program, or like twitch.tv)

 

[Ralston18]

Not sure about your specific intent: I would say the term is "post".

However, here is a link that may help you narrow down the terminology being sought:

https://help.twitch.tv/customer/portal/articles/2577667-video-upload-guide