gq: In addition, recording and reproducing an HDTV signal was a significant technical challenge in the early years of HDTV (Sony HDVS). Japan remained the only country with successful public broadcasting of analog HDTV, with seven broadcasters sharing a single channel.
Question: What was particularly challenging in the early years of HDTV? Question: Which country had successful public analog HDTV broadcasting? Question: What accomplishment in early HDTV did Japan have? Question: How many broadcasters did Japan have sharing a single channel?