Q. 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 and viewers receive them—you’re only able to watch what’s being 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, but these are independent of the ones that usually carry your TV signals.)

Instead of broadcasting a range of shows on a specific schedule, most IPTV uses video on demand (VOD) or time-shifted media.

There’s some complicated network architecture behind all of this making it work, including lots of transcoding from traditional signals to IP-friendly ones.



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