'Filmed in the standard definition process' you say? I am afraid you have seriously underestimated the potential of film. This series was shot on 35mm film. The 'Twilight Zone' series, 'produced decades ago', was mastered recently utilising the original camera negatives in telecine to HD. Anybody that has any pre-conceived ideas on how old films or tv shows translate to HD should clear their minds of any doubt. I believe that provided the best film elements are used for HD mastering the results are as good and even possibly surpass a lot of HD material done today.