- published: 14 Apr 2015
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A television channel is a physical or virtual channel over which a television station or television network is distributed. For example, in North America, "channel 2" refers to the broadcast or cable band of 54 to 60 MHz, with carrier frequencies of 55.25 MHz for NTSC analog video (VSB) and 59.75 MHz for analog audio (FM), or 55.31 MHz for digital ATSC (8VSB). Channels may be shared by many different television stations or cable-distributed channels depending on the location and service provider.
Depending on the multinational bandplan for a given region, analog television channels are typically 6, 7, or 8 MHz in bandwidth, and therefore television channel frequencies vary as well. Channel numbering is also different. Digital television channels are the same for legacy reasons, however through multiplexing, each physical radio frequency (RF) channel can carry several digital subchannels. On satellites, each transponder normally carries one channel, however small, independent channels can be used on each transponder, with some loss of bandwidth due to the need for guard bands between unrelated transmissions. ISDB, used in Japan and Brazil, has a similar segmented mode.
Channel, Channels, and similar terms may refer to:
Nancy Ann Grace (born October 23, 1959) is an American legal commentator, television host, television journalist, and former prosecutor. She frequently discusses issues from what she describes as a victims' rights standpoint, with an outspoken style that has won her both praise and condemnation. She is the host of Nancy Grace, a nightly celebrity news and current affairs show on HLN, and she was the host of Court TV's Closing Arguments. She also co-wrote the book Objection! — How High-Priced Defense Attorneys, Celebrity Defendants, and a 24/7 Media Have Hijacked Our Criminal Justice System. She was also the host of Swift Justice with Nancy Grace, a syndicated courtroom reality show on which her replacement, former Clark County District Court Judge Jackie Glass, was announced May 24, 2011, effective at the end of its first season.
Nancy Grace was born in Macon, Georgia, the youngest of three children, to Mac Grace, a freight agent for Southern Railway, and Elizabeth Grace, a payroll clerk for a manufacturing plant. Grace has two older siblings: a brother, Mac Jr., and a sister, Ginny. The members of the Grace family have been longtime members of Macon's Liberty United Methodist Church, where Nancy's mother Elizabeth plays the church organ and her father Mac was once a Sunday School teacher.