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What Is IPTV ?
Let’s start with the basics. What, exactly, is IPTV?
IPTV stands for “internet protocol television.” The “IP” in IPTV is the same as the one in your IP address or VoIP (voice over IP). All that means is television programming is being communicated using the internet protocol.
To understand what that means, you need to know a bit about how non-IPTV works. With cable or satellite TV, broadcasters send out signals in real-time, and viewers receive them—you’re only able to watch what’s being live broadcasted. Unless you have some sort of recording device, you don’t get to dictate what’s on when. You just tune in when you can and watch what’s available.
IPTV is different. Instead of transmitting content via light pulses in fiber-optic cable or radio waves from a satellite, IPTV sends shows and movies through your standard internet connection. (You may be using a cable or satellite internet connection from your preferred internet service provider (ISP), but these are independent of the ones that usually carry your TV signals.)
And the difference doesn’t stop there. IP network offers far more flexibility within the network enabling two-way interactivity, compared to the traditional, one-way cable connectivity or satellite broadcast network. This allows end-users to have more controls and options to interact, and personalize their experience.
Instead of broadcasting a range of shows on a specific schedule, most IPTV uses video on demand (VOD) or time-shifted media—we’ll discuss these, and a third format, in just a moment.
There’s some complicated network architecture behind all of this making it work, including lots of transcoding from traditional signals to IP-friendly ones. But the important thing is that you don’t have to watch what’s being broadcast. You can tell your provider what you want to watch, and they’ll send it to you immediately.
If you’ve used a streaming service like Netflix or Hulu, it’s the same idea, but with TV instead of movies or syndicated shows.
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