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Movies use 24 frames per second, North America television uses approximately 30 frames per second where the Europe television frame rate is 25 frames per second. Each digital video has dimensions width and height; SDTV is {{resx|720×480}} pixels, HDTV uses up to {{resx|1920×1080}} pixels.
For checking the bandwidth requirements, you need to dimension your IPTV service, such as defining number of SD and HD TV channels, number of planned subscribers, VOD and nPVR concurrency. Based on these, you can calculate required bandwidth on each DSL line, in access network and in core IP network.<ref>{{Cite web |last=Denis |first=Lacković |date=
==Privacy implications==
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