Wherever possible original DECCA Records Pty Ltd. vinyl pressings were used for the opera soundtracks
This was the first Australian TV production to use the "UltiMatte" image-keying format, a significant advancement on the existing "Chroma-Key" technique.
All major set-pieces were elaborate scale-models, designed by leading Opera Designers, the cameras were 'ganged' together via an early robotics gearing system to match action on set to the scale models - in real-time.