widescreen presentation on both its high-definition and standard-definition feeds in September 2010, it was the final Fox News program to structure its graphics and camera positions for the 4:3 safe area). MADtv was produced to air only in 4:3 until September 2008, likely due to a combination of stations tape-delaying the program and therefore being unable to offer it via the live network feed in 16:9, and the show's producers not making the switch to the format. The final Fox show to convert to HD was Family Guy beginning with its September 26, 2010, episode; all programming provided by Fox is now broadcast in widescreen and in high definition , and in Dolby Digital 5.1 surround sound. Fox is unique among U.S. broadcasters as it distributes its HD feed over satellite to the network's affiliates as an MPEG transport stream intended to be delivered bit-for-bit for broadcast transmission. During network programming hours, local commercials are inserted over the feed using a transport stream splicer. Affiliates of most other networks decode compressed satellite network video feeds and then re-encode them for final over-the-air transmission. After Fox began broadcasting its sports programming with graphics optimized for 16:9 displays rather than the 4:3 safe area in late July 2010, the network asked cable and satellite providers to comply and use the #10 Active Format Description flag it now disseminates over Fox programming, which displays content natively broadcast in 16:9 in a letterboxed format suitable for 4:3 television screens to allow any optimized graphical elements to be displayed in full. Subsequently, a number of Fox O&Os and affiliates also began disseminating the AFD #10 flag over local news and syndicated programs that the stations broadcast in HD, and have incorporated graphical elements seen during local programs and on-air promos (as well as logo bugs) optimized for the letter boxed presentation. Branding Station standardization During the early 1990s, Fox began having its stations use a branding structure using a combination of the "Fox" name and the station's channel number, often followed by the licensed call letters (for instance, WNYW in New York City, WTTG in Washington, D.C. and WAGA-TV in Atlanta, Georgia, are all branded as "Fox 5"). By the mid-to-late 1990s, stations minimized their call letters to be just barely readable while still in compliance with FCC identification requirements. This marked the start of the trend for other networks to apply such naming schemes.