NTSC, named after the National Television System Committee, is the analog television color system, introduced in North America in 1954 and stayed in use until digital conversion. It was one of three major analog color television standards, the others being PAL and SECAM. All the countries using NTSC are in the process of conversion, or have converted to the ATSC standard, or to DVB, ISDB or DTMB; this page discusses the NTSC color encoding system. The articles on broadcast television systems, analog television further describe frame rates, image resolution and audio modulation; the NTSC standard was used in most of western South America, Liberia. Most countries using the NTSC standard, as well as those using other analog television standards, have switched to, or are in process of switching to, newer digital television standards, with there being at least four different standards in use around the world. North America, parts of Central America, South Korea are adopting or have adopted the ATSC standards, while other countries, such as Japan, are adopting or have adopted other standards instead of ATSC.

After nearly 70 years, the majority of over-the-air NTSC transmissions in the United States ceased on January 1, 2010, by August 31, 2011 in Canada and most other NTSC markets. The majority of NTSC transmissions ended in Japan on July 24, 2011, with the Japanese prefectures of Iwate and Fukushima ending the next year. After a pilot program in 2013, most full-power analog stations in Mexico left the air on ten dates in 2015, with some 500 low-power and repeater stations allowed to remain in analog until the end of 2016. Digital broadcasting allows higher-resolution television, but digital standard definition television continues to use the frame rate and number of lines of resolution established by the analog NTSC standard; the first NTSC standard had no provision for color. In 1953, a second NTSC standard was adopted, which allowed for color television broadcasting, compatible with the existing stock of black-and-white receivers. NTSC was the first adopted broadcast color system and remained dominant until the 2000s, when it started to be replaced with different digital standards such as ATSC and others.

The National Television System Committee was established in 1940 by the United States Federal Communications Commission to resolve the conflicts between companies over the introduction of a nationwide analog television system in the United States. In March 1941, the committee issued a technical standard for black-and-white television that built upon a 1936 recommendation made by the Radio Manufacturers Association. Technical advancements of the vestigial side band technique allowed for the opportunity to increase the image resolution; the NTSC selected 525 scan lines as a compromise between RCA's 441-scan line standard and Philco's and DuMont's desire to increase the number of scan lines to between 605 and 800. The standard recommended a frame rate of 30 frames per second, consisting of two interlaced fields per frame at 262.5 lines per field and 60 fields per second. Other standards in the final recommendation were an aspect ratio of 4:3, frequency modulation for the sound signal. In January 1950, the committee was reconstituted to standardize color television.

The FCC had approved a color television standard in October 1950, developed by CBS. The CBS system was incompatible with existing black-and-white receivers, it used a rotating color wheel, reduced the number of scan lines from 525 to 405, increased the field rate from 60 to 144, but had an effective frame rate of only 24 frames per second. Legal action by rival RCA kept commercial use of the system off the air until June 1951, regular broadcasts only lasted a few months before manufacture of all color television sets was banned by the Office of Defense Mobilization in October, ostensibly due to the Korean War. CBS rescinded its system in March 1953, the FCC replaced it on December 17, 1953, with the NTSC color standard, cooperatively developed by several companies, including RCA and Philco. In December 1953 the FCC unanimously approved; the compatible color standard retained full backward compatibility with then-existing black-and-white television sets. Color information was added to the black-and-white image by introducing a color subcarrier of 315/88 MHz.

The precise frequency was chosen so that horizontal line-rate modulation components of the chrominance signal fall in between the horizontal line-rate modulation components of the luminance signal, thereby enabling the chrominance signal to be filtered out of the luminance signal with minor degradation of the luminance signal. Due to limitations of frequency divider circuits at the time the color standard was promulgated, the color subcarrier frequency was constructed as composite frequency assembled from small integers, in this case 5×7×9/ MHz; the horizontal line rate was reduced to 15,734 lines per second from 15,750 lines per second, the frame rate was reduced to 30/1.001 ≈ 29.970 frames per second from 30 frames per second. These changes amounted to 0.1 percent and were tolerated by then-existing television receivers. The first publicly announced network tele

Trish Thuy Trang is a Vietnamese American singer and songwriter. She was born in Saigon, Vietnam, on December 15, 1980; when she was young, she was familiar with American music styles by listening to Madonna, Mariah Carey and Sheryl Crow. As a result, her music is a mix of Asian pop and western pop and R&B, her parents saw the passion she encourage her into piano lessons. On, she started to learn different types of artistic skill that nurtured her talent and let her be where she is today; some of the skills she learned include: singing in the choir, painting and poetry. After a while, karaoke become famous at home, as Trish displayed her amazing singing skill, friends encouraged her to send a demo to Asia Entertainment. Asia Entertainment was amazed at her skill in fluently singing both English and Vietnamese that they accepted her, she produces a majority of her own music and lyrics. She appears on Asia Entertainment videos for the Vietnamese music community and collaborates with Asia Entertainment and Triple T Productions for CD productions.

Trish Thuy Trang is one of the first Vietnamese singers to appear on iTunes, where her fourth CD Trish can be downloaded. Her fifth album, entitled Shades of Blue, was released in April 2008, her 6th album, entitled "Whispers" was released in 2010. In October 2010, Trish married in a Buddhist ceremony, her husband, Nghia is not in the music industry, in 2012 they had a son, named Nio. On her Facebook page, she explained "His name is Buddhist and means the guardian of Buddha and protector of cherished values and beliefs against evil." In January 2014, Trish announced that she was again pregnant, this time with a daughter, posted ultrasound imagery of the baby on her Facebook page. On May 31, 2014 her daughter Melodi is born. Don't Know Why I'll Dream of You Siren Trish Shades of Blue Whispers Secret Place Without A Trace The Best of Trish 1 The Best of Trish 2 Waiting For You Merry Christmas The Best of Trish - All My Favorite Songs Trish DVD Video: 2 Hours Special Trish MTV DVD - Ever After Official website

Sébastien Toutant is a Canadian snowboarder. He is the reigning Olympic gold medalist in men's big air snowboarding from its debut at the 2018 Winter Olympics. Toutant was twice the gold medal winner in slopestyle at the X Games in 2011 and 2013, he has won an additional two silver medals plus a bronze in slopestyle and big air events at the X Games bringing his total medals in the competition to five. Starting snowboarding at age nine, Toutant got into the sport when he broke his skis and borrowed his brother's old snowboard. Toutant's skills were first noticed when he won his first professional event at just 13 years of age, he was taken by a film crew to Mount Hood shortly after to shoot video of him on the biggest jumps he had seen at this point in his life. Toutant had missed making his debut the X Games in 2010 because of a broken ankle; the following season though, Toutant won a silver medal in Snowboard Big Air at the 2011 Winter X Games XV in Aspen, behind Torstein Horgmo. He won gold in Snowboard Slopestyle in the same games, it was his first gold at the X Games.

The victory in slopestyle at the X Games made Toutant the first male rookie to win gold at the X Games in the event since 2002. During the spring of 2011, he was the third person to land a triple cork; the following season Toutant failed to make any significant podium finishes. In 2013 Toutant returned to the X Games in France. There he made it to the top of the podium beating his friend and teammate Mark McMorris whom he has known since he was 14. Toutant made his Olympic debut at the 2014 Winter Olympics where he was a member of Canada's snowboard team. In the slopestyle final in Sochi he finished in 9th place overall. Following the Olympics Toutant would further his X Games pedigree, winning silver in slopestyle in Aspen, Colorado in 2016. A week he would win the Air + Style event in Innsbruck, Austria. Building towards his next Olympics Toutant had successful season in 2016-17. First he won bronze in the slopestyle event at the X Games Europe in Norway, he would win the slopestyle event at the Cardrona Winter Games in New Zealand and a gold medal in Quebec City in slopestyle at a stop on 2016–17 FIS Snowboard World Cup tour.

Toutant would place second in the Air + Style event in Beijing that year and a second place finished in the US Grand Prix, while finishing his season with a third place finish on the Dew Tour. Though he was named to 2018 Canadian Olympic team in Pyeongchang, Toutant participated in few events in the buildup to the games, it was revealed that he had been dealing with a compressed disc in his back and was forced to gym only training and practicing while teammates McMorris and Maxence Parrot were training on the slopes. Keeping his injury a secret Toutant hit the slopes at the Olympics, he finished last in the men's slopestyle final. In the big air final Toutant defied his injury and rode to a surprise gold medal, surpassing teammates McMorris and Parrot, he said of his gold medal victory after that "I just love snowboarding so much, I've been through so much lately. A couple of months ago, I couldn't snowboard, so it feels great that I'm able to ride at my best and to put the tricks down. To be able to show up and to show the world what I can do is just awesome."

The victory made Toutant the first men's big air champion in the Olympics as this was the debut of the event at the games. 3rd place 2015 U. S. Grand Prix - Slopestyle 2014 Ride Shakedown - Best Trick 2nd place 2014 Dew Tour - Slopestyle 1st place AST Mile High - Slopestyle 2013 European Winter X Games Gold - Slopestyle 1st place 2012 TTR Overall Champion 1st Overall in 2012 Dew Tour Year End Rankings - Slopestyle 1st place 2012 Burton Open: Vermont - Slopestyle 2012 Winter X Games Bronze - Big Air 2011 Winter X Games Gold - Slopestyle 2011 Winter X Games Silver - Big Air 5-time Ride Shakedown Champion 2018 Winter Olympic Gold Medalist - Big Air Sébastien Toutant at the International Ski Federation