A recent thread about Sony Trinitron's brought up a question to mind. I know about the Sony CRT PVM (Presntation Video Monitor) and BVM (Broadcast Video Monitor) lines, but just realized that AFAIK, they're all traditional curved screens. Were there any flat tube (Wega/FD Trinitron) PVM or BVM monitors? Seems they were all curved until the flat screens were capable of being good enough for professional use.