HDTV blur is a common term used to describe a number of different artifacts on modern consumer high-definition television sets.

The following factors are generally the primary or secondary causes of HDTV blur; in some cases more than one of these factors may be in play at the studio or receiver end of the transmission chain.

It is common for observers to confuse or misunderstand the source of blurring on HDTV sets. There are many different possible causes, many of them being possible simultaneously.

Pixel response times need to be below 16.67 milliseconds in order to fully represent the bandwidth of color changes necessary for 60 Hz video. However, even when this response time is achieved or surpassed, motion blur can still occur because of the least understood blur effect: eye tracking.

LCDs often have a greater motion blur effect because their pixels remain lit, unlike CRT phosphors that merely flash briefly. Reducing the time an LCD pixel is lit reduces motion blur due to eye tracking by decreasing the time the backlit pixels are on. However, an instant strobe is required to completely eliminate the retinal blurring.

High-definition television (HDTV) provides a resolution that is substantially higher than that of standard-definition television.

HDTV may be transmitted in various varieties:

The letter "p" here stands for progressive scan while "i" indicates interlaced.

When transmitted at two megapixels per frame, HDTV provides about five times as many pixels as SD (standard-definition television).

The term high definition once described a series of television systems originating from the late 1930s; however, these systems were only high definition when compared to earlier systems that were based on mechanical systems with as few as 30 lines of resolution.

The British high-definition TV service started trials in August 1936 and a regular service on 2 November 1936 using both the (mechanical) Baird 240 line and (electronic) Marconi-EMI 405 line (377i) systems. The Baird system was discontinued in February 1937. In 1938 France followed with their own 441-line system, variants of which were also used by a number of other countries. The US NTSC system joined in 1941. In 1949 France introduced an even higher-resolution standard at 819 lines (768i), a system that would be high definition even by today's standards, but it was monochrome only. All of these systems used interlacing and a 4:3 aspect ratio except the 240-line system which was progressive (actually described at the time by the technically correct term "sequential") and the 405-line system which started as 5:4 and later changed to 4:3. The 405-line system adopted the (at that time) revolutionary idea of interlaced scanning to overcome the flicker problem of the 240-line with its 25 Hz frame rate. The 240-line system could have doubled its frame rate but this would have meant that the transmitted signal would have doubled in bandwidth, an unacceptable option.

Blur may refer to:

In vision and optics:

In graphic arts:

In popular music:

In fiction:

In film:

In video games:

William "Bill" Burr (born June 10, 1968) is an American stand-up comedian, radio host and actor.

Burr was born in Canton, Massachusetts. His father was a dentist, and Bill worked as a hygienist for a short time. He began stand-up at age 23 after attending Emerson College, where he majored in Radio. Burr also had a early morning slot on college radio during this period. In 1995, he moved to New York City and lived there for eight months. Burr then moved to Los Angeles, California, where he worked on a number of film and television projects. He returned to New York in 1999 and moved back to Los Angeles in 2008, where he currently resides. Burr stands 5'10" in height, is left handed, and is of German and Irish descent.

He performs over three hundred shows annually, had two movies released in 2006, and has performed on The Late Show with David Letterman, Late Night with Conan O'Brien, and The Tonight Show with Conan O'Brien. In early 2004, he appeared in two episodes of Chappelle's Show, and in September 2005, his HBO One Night Stand special aired. Along with many other projects, Burr has also been a guest comedian on the Bob and Tom Show as well as on the Opie and Anthony Show on XM Satellite Radio, sometimes sitting in when third member Jim Norton is away. He has also performed on the Comedy Central Presents show.

Robin Charles Thicke ( /ˈθɪk/; born March 10, 1977) is an American R&B singer-songwriter, musician, composer, and actor. Thicke's albums, which he previously released under the name Thicke, are noted for their feature of a predominantly R&B sound. Thicke has written hits for popular artists such as Jennifer Hudson, Usher, Mary J. Blige and Raven-Symoné. Thicke has also been acknowledged for his work in popular albums such as Confessions and Tha Carter III.

Thicke is a judge on the ABC show Duets.

Before his days as a singer-songwriter, Thicke had written "Love Is On My Side" on Brandy's self-titled album and a number of songs for 3T's "Sexual Attention" and collaborated with Jordan Knight, Jimmy Jam and Terry Lewis on several songs in Knight's 1999 album Jordan Knight. He also co-wrote the songs "When You Put Your Hands On Me" for Christina Aguilera's debut album and "No Tears on My Pillow" for Mýa's sophomore release, Fear of Flying. As an artist, he recorded and performed solely under his surname, Thicke. He would continue to do so until 2005.