Since 21 April 2008, the overnight bulletins, while produced by the BBC News Channel, have usually been broadcast from the studios of BBC World News.

Since Tuesday, 26 May 2009, those bulletins have been broadcast from TC7 and N6 in Television Centre, the main studios of BBC Breakfast and the BBC News Channel respectively.

Since 2009, all new shows include previously broadcast segments as much as 10 years old.

Since 2002, FNC has been broadcast to Brazil ; however, commercials are replaced with Fox Extra.

Since You Bet Your Life was mostly ad-libbed and unscripted — although writers did pre-interview the guests and feed Groucho ready-made lines in advance — the producers insisted that the network prerecord it ( instead of being broadcast live ).

Since 2006, the Met has broadcast live performances to several hundred movie screens all over the world.

Since radio circuits inherently possess a broadcast network topology ( i. e., many or all nodes are connected to the network simultaneously ), one of the first technical challenges faced in the implementation of packet radio networks was a means to control access to a shared communications channel.

Since three of the major broadcast networks had their transmission towers atop the North Tower ( One World Trade Center ), coverage was limited after the collapse of the tower.

Since the 1970s the availability of video cassettes, laserdiscs, DVDs and now Blu-ray Discs, have resulted in the television set frequently being used for viewing recorded as well as broadcast material.

Since its debut on December 17, 1989, the show has broadcast

Since launch in 1994, Turner Classic Movies broadcast the older Warner Bros, RKO, and MGM libraries.

Since 2007, games have been broadcast on WCWA-AM.

Since the creation of Fox, the number of American television networks has grown, but the amount of programming they provide is often much less: for example, The CW Television Network only broadcasts for ten hours each week, leaving its affiliates free to broadcast a large amount of syndicated programming.

Since the advent of radio, and then television, the speech has been broadcast live on most networks, preempting scheduled programming.

Since NBC was the broadcast arm of radio set manufacturer RCA, its chief David Sarnoff approached his decisions as both a broadcaster and as a hardware executive ; NBC's affiliates had the latest RCA equipment, and were often the best-established stations, or were on " clear channel " frequencies.

Since the 1999 sale of its broadcast client list to its one-time major rival, the AP, UPI has concentrated on smaller information market niches.

Since late July 2010, when Fox began to broadcast their sports programming with graphics optimized for 16: 9 displays rather than the 4: 3 safe area, the network has asked cable and satellite providers to comply and use the No. 10 Active Format Description code they now send out over Fox programming, which has 16: 9 content display in letterboxed mode on 4: 3 screens and has graphical elements optimized for the 16: 9 screen.

Since 1967, the award ceremony has been broadcast on U. S. national television and includes songs from the nominated musicals, and occasionally has included video clips of, or presentations about, nominated plays.

Since 1974, the show has been broadcast from the Grand Ole Opry House east of downtown Nashville and performances have been sporadically televised in addition to the radio programs.

Since announcer Johnny Olson split time between New York and Miami to announce The Jackie Gleason Show, one of the network's New York staff announcers ( such as Don Pardo or Wayne Howell ) would fill in for Olson when he could not attend a broadcast.

Since then, many of the Lantern FM team, past and present, have reunited to create The Voice, a new local radio station broadcasting fron Barnstaple, on DAB and online and working towards being able to broadcast on FM once again.

Since the original broadcast did not rely on commercial advertising revenue, it was believed to be more objective and long term oriented.

Since Sherman County is part of the Wichita media market and the local broadcast stations are repeat signals of Wichita affiliates, prime-time programming in the county is aired from 6 to 9 p. m. local time, rather than 7 to 10 p. m. as is normal in the Central and Mountain time zones.

" Since the state's newspapers were financed by the opposition, in March 1930 Long founded his own paper, the Louisiana Progress, which he used to broadcast achievements and denounce his enemies.

Since conventional methods are insensitive at the low frequencies of these molecular transitions, the paramagnetic resonance method is being used instead.

Since the energy levels of electrons in atoms are discrete, each element and each molecule emits and absorbs its own characteristic frequencies.

Since there is a limited number of frequencies for non-cable television and radio stations, the government licenses them to various companies.

Since the power wiring system was originally intended for transmission of AC power, the power wire circuits have only a limited ability to carry higher frequencies.

Since optical frequencies are far beyond the manipulation-capacity of any feasible electronic circuit, all photon detectors are inherently energy detectors not oscillating electric field detectors.

Since a single integrated circuit can provide a complete phase-locked-loop building block, the technique is widely used in modern electronic devices, with output frequencies from a fraction of a hertz up to many gigahertz.

Since the 1980s, versions for use at microwave frequencies have been made with patch antenna elements mounted in front of a metal surface.

Since these can be viewed as being made of millions of coupled moving parts ( such as atoms ), they can have millions of resonant frequencies.

Since plasma has minimal mass, but is charged and therefore can be manipulated by an electric field, the result is a very linear output at frequencies far higher than the audible range.

Since the frequency range of the typical noise experiment ( e. g. 1 Hz – 1 kHz ) is low compared with typical microscopic " attempt frequencies " ( e. g. 10 < sup > 14 </ sup > Hz ), the exponential factors in the Arrhenius equation for the rates are large.

Since SSTV systems operate on voice frequencies, amateurs use it on shortwave ( also known as HF by amateur radio operators ), VHF and UHF radio.

Since glass shows dispersion, these different frequencies will travel at different speeds and the shape of the pulse will therefore change over time.

Since these frequencies propagate by ground wave only, the precision of time signals is not affected by varying propagation paths between the transmitter, the ionosphere, and the receiver.

Since the size of a directional antenna depends on it being large compared to the wavelength, very directional antennas of this sort are mainly feasible at UHF and microwave frequencies.

Since the ear is most sensitive to the middle frequencies produced by a midrange the driver and amplifier can both be low power, while still delivering what is perceived to be good sound both in terms of volume and quality.

Since the 1990s, a type of woofer ( termed subwoofer ), which is designed for very low frequencies only, has come to be commonly used in home theater systems and PA systems to augment the bass response ; they usually handle the very lowest two or three octaves ( i. e., from as low as 20 to perhaps 80 or 120 Hz ).

Since the Bohr model is not perfectly accurate, due to fine structure, hyperfine splitting, and other such effects, the Rydberg constant cannot be directly measured at very high accuracy from the atomic transition frequencies of hydrogen alone.

Since this circuit lacked any frequency-selective elements besides the broad resonance of the antenna, it had little ability to reject unwanted stations, so all stations within a wide band of frequencies were heard in the earphone ( in practice the most powerful usually drowns out the others ).

Since the power distribution system was originally intended for transmission of AC power at typical frequencies of 50 or 60Hz, power wire circuits have only a limited ability to carry higher frequencies.

Since we're only interested in a finite window of frequencies ( of size n, say ) this can be done using a Fast Fourier Transform algorithm.

Since the cable network is a closed system, frequencies used for over-the-air services such as mobile radio, cellular telephone, or aircraft communications can be assigned to carry television programming.

Since a frequency raised by one cent is simply multiplied by this constant cent value, and 1200 cents doubles a frequency, the ratio of frequencies one cent apart is precisely equal to 2 < sup > 1 / 1200 </ sup >, the 1200th root of 2, which is approximately 1. 0005777895.