It has several elements: Examples include: For a more complete list, see List of Internet television providers and List of video hosting services.The public Internet is used for transmission from the streaming servers to the consumer end-user.It also supports video on demand—browsing a catalog of videos (such as movies or television shows) which might be unrelated to the company's scheduled broadcasts.
The receiver must have an Internet connection, typically by Wi-fi or Ethernet, and could be: Not all receiver devices can access all content providers.
Most have websites that allow viewing of content in a web browser, but sometimes this is not done due to digital rights management concerns or restrictions.
However, as streaming HD video takes around 1.5 GB of data per hour of video the BBC has had to invest a lot of money collected from License Fee payers to implement this on a large scale.
For users who do not have the bandwidth to stream HD video or even high-SD video, which requires 1500 kbit/s, the BBC i Player offers lower bitrate streams which in turn lead to lower video quality.
Higher-quality video such as video in high definition (720p ) requires higher bandwidth and faster connection speeds.
The generally accepted kbit/s download rate needed to stream high-definition video that has been encoded with H.264 is 3500 kbit/s, whereas standard-definition television can range from 500 to 1500 kbit/s depending on the resolution on screen.
DRM (digital rights management) software is also incorporated into many Internet television services.
Sky Go has software that is provided by Microsoft to prevent content being copied.
This makes use of an adaptive bitrate stream so that if the user's bandwidth suddenly drops, i Player will lower its streaming rate to compensate.
A diagnostic tool offered on the BBC i Player site measures a user's streaming capabilities and bandwidth., Channel 4 has started providing HD content on its On Demand platforms such as i OS App, Android App and Channel4website.
A display device, which could be: IPTV delivers television content using signals based on the Internet protocol (IP), through the open, unmanaged Internet with the "last-mile" telecom company acting only as the Internet service provider (ISP).