Of course, these are programs and movies in digital format, otherwise they could not even get through the Internet. They can be standard definition (SD), but often also in lower definitions (especially when the terminal is a smartphone), or high-definition. Of the two main formats consolidated for high definition, normally format 720p is chosen (whereas for television broadcast, the preferred format is 1080i). It must be said, however, that for some time now programs and movies via the Internet are distributed in adaptive streaming mode: the actual definition is decided by the server, both depending on the type of user terminal and on the bandwidth actually available – and measured at subsequent time intervals – over the Internet client-server connection.
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