WTXF-TV, virtual channel 29 (digital channel 42), is an owned-and-operated station of the News Corporation-owned Fox Broadcasting Company, based in Philadelphia, Pennsylvania. The station has its studios located in Center City, Philadelphia and its transmitter is located in the Roxborough section of the city. The station's signal covers the Delaware Valley area (Pennsylvania, New Jersey and Delaware).

Philadelphia is the largest television market where MyNetworkTV was not awarded to a Fox owned-and-operated station, as the affiliation is with WPHL-TV (channel 17). As a result, WTXF does not have a secondary affiliation with the network. Along these lines, WTXF is the largest Fox affiliate/station not part of any duopoly.

The station signed on the air on May 16, 1965 as independent station WIBF-TV, owned by brothers William, Irwin, and Benjamin Fox. The Fox brothers had already been operating WIBF-FM (103.9 MHz., now WPPZ) for several years. Channel 29's original studio was located in the Fox family's Benson East apartment building on Old York Road in the suburb of Jenkintown, north of Philadelphia. WIBF-TV was the first commercial UHF station in Philadelphia, and the first of three UHF independents in the Philadelphia market to sign-on during 1965, with WPHL-TV (channel 17) and WKBS-TV (channel 48) both arriving in September.

Dr. Steven Collins is a senior lecturer in the Department of Computer Science in Trinity College, Dublin and co-manager of the GV2 Research Group. Born in Dundalk, County Louth, his interests in computing began with the Commodore 64 where he single-handedly developed and released the games Badlands and Herobotix.

He is also a co-founder of Havok, a company which provides physics simulation software for computer games and films. The company was sold to Intel in September 2007 for €76M.

In 2005, he was recognized by PC Gamer magazine as being one of the top 50 game industry influencers of that year.

In 2007, Steven started the MSc in Interactive Entertainment Technology course in Trinity College Dublin, where he acts as course director and lectures in real-time rendering. He is quoted as saying that the course was started in order to educate the "future captains of industry" in reference to the games industry. Both Dr. Collins and Hugh Reynolds, were awarded the Trinity College Dublin Innovation Award for 2007, for their work in co-founding Havok. In March 2008, Collins and Reynolds co-founded "Kore Virtual Machines", a company dedicated to designing computer gaming virtual machines, using the Lua programming language. Dr. Collins is currently CTO of Kore.