Tag Archives: Tivo

Lunch & Learn: Tuning In or Tuning Out? The New World of Digital TV with David Hopkins

tvs.jpgSince the early days of television, one of the principle challenges has been to deliver transmissions of high quality video with consistency. Throughout the world, several video standards, notably PAL, SECAM, and NTSC have attempted to achieve such quality. Since just after the Second World War, the United States has been committed to NTSC, named for the National Television System Committee that adopted it. This analog television system uses 525 lines of resolution and 30 frames per second but is constrained in no small part by the complexities and inconsistencies involved in transmitting audio and video over the air waves. Hence, its nickname among technicians: “Never The Same Color twice in a row.”
After more than a half century of use, NTSC transmissions will be replaced in the United States by a new standard, ATSC [Advanced Television Systems Committee] on February 19, 2009. After that date, full-power stations will broadcast digital signals only. For more information about the deadline and its possible impact, link to www.DTV.gov. As it turns out, 3,000 low-power stations will not be making the transition immediately owing to its costs. To see the new digital transmissions, owners of older analog television sets will need a decoder or set-top box to translate the new digital signals into an analog signal that the older TVs can understand.

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Lunch & Learn: Tivo for the Internet: RSS Feeds for Research and Leisure with Steven M. Adams

Internet users are accustomed to surfing the web, migrating haphazardly or with purpose from site to site. Rather than periodically checking out your most interesting sites to see if anything of interest might have been added, imagine if those sites all came to you.
RSS (Really Simple Syndication) technology enables anyone to “subscribe” to content on the web and have updates downloaded into their RSS feed readers automatically. As many in the blogosphere have described it, RSS is like Tivo, but for the Internet. This simple analogy was the inspiration for the name of this talk. RSS feeds are most often used on sites with frequently updated content (e.g., blogs, news sites, scholarly journals, etc.). Steven M. Adams, Biological and Life Sciences Librarian at Princeton University, elucidates this underutilized knowledge discovery tool; it can transform the way you work and play on the web.

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