gq: Early HDTV commercial experiments, such as NHK's MUSE, required over four times the bandwidth of a standard-definition broadcast. Despite efforts made to reduce analog HDTV to about twice the bandwidth of SDTV, these television formats were still distributable only by satellite.
Question: What kind of experiments required over four times the bandwith of a SDTV broadcast? Question: How much more bandwith was required from early HDTV commercial experiments than an SD broadcast? Question: Efforts were made to reduce analog HDTV to how much of the bandwith of SDTV? Question: Despite the reduced bandwith, HDTV format still had to be distributed how?