AT&amp;T enlisted Commerce Secretary Herbert Hoover to show off this technology to reporters in a distant auditorium in 1927.  
One pioneer of this technology so disliked his portly board chairman Sir Edward Manville that he designed the door to his lab to be so narrow that the overweight Manville couldn't fit through it.  A mechanical precursor to this technology was developed by John Logie Baird and required enormous discs in order to function.  AT&amp;T enlisted Commerce Secretary Herbert Hoover to show off this technology to reporters in a distant auditorium in 1927.  The inventor of this technology made sketches of it to a (*) high school teacher, which later helped him in a patent lawsuit.  That same inventor also came up with a fusor co-named for Robert Hirsch and won a patent lawsuit against the company that popularized this technology, RCA.  For 10 points, name this technology invented by Philo Farnsworth, which until recently used cathode ray tubes to project a picture
One pioneer of this technology so disliked his portly board chairman Sir Edward Manville that he designed the door to his lab to be so narrow that the overweight Manville couldn't fit through it.  
broadcast television [or TV]