Question: What television unit was launched in December 1977 and played shows like Video Concert Hall?

Context paragraphs:
QUBE: QUBE was an experimental two-way, multi-programmed cable television system that played a significant role in the history of American interactive television.  It was launched in Columbus, Ohio, on December 1, 1977.  Highly publicized as a revolutionary advancement, the QUBE experiment introduced viewers to several concepts that became central to the future development of TV technology: pay-per-view programs, special-interest cable television networks, and interactive services.

Granada Theater (Dallas): The Granada Theater is a theatre located in Lower Greenville, in Dallas, TX.  The theatre was built in 1946 as a movie house.  In 1977, it was converted to a concert hall, only to revert to a movie theater soon after.  In 2004 it was again opened as a concert hall.

Pilotdrift: Pilotdrift is an American experimental rock band formed in Texarkana, Texas.  Their sound has been described as an experimental mixing bowl, with ingredients including space rock, cinematic orchestral music, jazz, psychedelic rock, dark n' dusty westerns, future pop, spoken word, electro-indie, folk etc.  They have toured the U.S and Canada with the likes of The Polyphonic Spree, Supergrass, Eisley, Midlake,and Guster as well as played shows with The Album Leaf, Jon Brion, Devotchka, Akron Family, Angels of Light, Dios (Malos) and more.  They have also had their music featured in TV shows like TLC's Deadliest Catch and The Messengers.

Vignesh Karthick: Vignesh Karthick is an Indian film and television actor, Video jockey, Stand-up comedian Radio jockey and Film director.  He started his career by acting and directing Short films and participating in reality shows, including the comedy game shows like "Athu Ithu Ethu" in STAR Vijay and Comedy Jodies in Zee Thamizh as a stand-up comedian.  He later went on to host of those shows, especially the popular shows like "Suriya Vanakkam", "Thapal Petti En 8484" and many other shows in Sun TV and STAR Vijay respectively.  In 2015, he started to work as Radio jockey with the radio station BIG FM 92.7.  In 2016, he made his acting debut in films with "Natpadhigaram 79" and in television with "Pagal Nilavu".  He will also making directorial debut in films with "Yenda Thalaila Yenna Vekkala".

Astro SuperSport: Astro SuperSport is an in-house satellite television network in Malaysia dedicated to broadcasting sports-related content 24 hours a day.  It is available on the Astro (satellite TV) via Channels 810 & 831 (HD) to subscribers of the Sports package only.  Launched in 1996 as one of Astro's original channels, Astro SuperSport offers a variety of international sporting events such as football, badminton, motorsport, rugby, volleyball, golf and WWE shows like Astro SuperSport leads the way in HD broadcasting in South East Asia on channel 831.  The network has been broadcasting studio shows around major football in HD like the Premier League and FIFA World Cup since 2010 and magazine shows like FourFourTwo since 2011.

Ray tracing (graphics): In computer graphics, ray tracing is a rendering technique for generating an image by tracing the path of light as pixels in an image plane and simulating the effects of its encounters with virtual objects.  The technique is capable of producing a very high degree of visual realism, usually higher than that of typical scanline rendering methods, but at a greater computational cost.  This makes ray tracing best suited for applications where the image can be rendered slowly ahead of time, such as in still images and film and television visual effects, and more poorly suited for real-time applications like video games where speed is critical.  Ray tracing is capable of simulating a wide variety of optical effects, such as reflection and refraction, scattering, and dispersion phenomena (such as chromatic aberration).

Christoph Bull: Christoph Bull (born August 27, 1966) is a German composer, musician and educator, and a Doctor of Musical Arts (D.M.A.) who was the first organist to record a complete commercial album at the Disney Concert Hall in Los Angeles California using the Frank Gehry co-designed Glatter-Götz/Rosales organ, 2010's "First & Grand Walt Disney Concert Hall Premiere Recording".  Christoph is also the creator of Organica, a multi-media concert and recorded album series that has been performed regularly since April 1999.  Dr. Bull has performed on several soundtracks for movies and television series, including the score for the 2016 remake of Ghostbusters.

Video Concert Hall: Video Concert Hall (VCH) was an American television network launched on November 1, 1979, on the USA Network and on Showtime, featuring an unhosted rotation of music videos.  Often credited as being the precursor to MTV, "Video Concert Hall" was reportedly the most popular programming on QUBE, a cable television unit of Warner Communications.  VCH, as it was often called, was created by radio and cable television executive Lloyd G. Crowe (Jerry Crowe) and Charles W. Henderson, a journalist who would later work for TriStar Pictures.  "Video Concert Hall" was produced by Henderson-Crowe Productions and the company Video Concert Hall, Ltd. at studios in Atlanta, Georgia.  Crowe and Henderson served as executive producers of "Video Concert Hall", as well as other top-rated syndicated musical variety TV specials.

C.W. Henderson: Charles W. Henderson is an American media executive, technology executive, and journalist.  He is president of media and technology companies NewsRx LLC and ScholarlyMedia LLC.  He was co-founder of Video Concert Hall the first nationwide music video TV network.  A "USA Today" cover story named him one of “6 Who Made a Difference.”  He has also been on the cover of Billboard magazine.

Grand Avenue Project: The Grand Avenue Project is a project currently under development in Downtown Los Angeles, along Grand Avenue.  On February 14, 2007 both the Los Angeles City Council and the Los Angeles County Board of Supervisors approved the project, and officials originally hoped to break ground in December 2007.  The project has been developed in stages due to the Great Recession.  On July 26, 2012, Grand Park opened to the public as the initial phase of the project followed by the unveiling of a 19-story luxury condo tower in the Fall of 2014.  The Broad, located between the Disney Concert Hall and the condo tower, opened in 2015.  The final phase of the project, on a lot directly east of the Disney Concert Hall, will have two skyscrapers.  They will consist of two towers.  A 39 story residential tower and a 20 story tower featuring apartments and an Equinox Hotel.  The development was designed by Frank Gehry.  Construction is set to start in December 2018 and open by the end of 2022.

Supporting paragraphs: Video Concert Hall QUBE
Answer: QUBE