Why is webcasting different from live TV?

Network signals produced by the analog signal encoding, the production of this process takes time, and the TV is first live before a section of a section of the production buffer into the network signal, sent to a level of server equipment data processing, time (network delay)

Then your computer performance, you use the speed of the network you use the playback software you use to connect to the live server have a direct relationship between the network broadcast and television broadcast is not synchronized, so that you can watch the network broadcast and television broadcast is not synchronized. relationship leads to the live webcast you watch and the TV is not synchronized. Network TV is always delayed compared to digital TV ..... The fastest delay of tens of seconds, the slowest ten minutes.