IMHO - The programme was quite good, but couldn't possibly do justice to such a great aviator. That needs a complete series.
As an aside, My late brother was OCAero Flt, RAE Bedford (One of `Winkles` posts) in the 60s and always talked of him with tremendous respect. I had the honour of meeting him at Middle Wallop earlier this year. Quite a remarkable man and aviator supreme.