I watched every episode of this BBC Sunday tea-time series, and enjoyed throughout. I was 10 years old, going on to 11 during this first series. I was also hugely captured by the well chosen music for the opening and credits sequences ... an excerpt the 4th Movement of Berlioz's Symphonie Fantastique ("The March to the Scaffold"), and an excerpt of the 3rd Movement of the Bruckner. Symphony No. 7. I.know that these music sources were used as my brother, some 6 years older than me, wrote to the BBC to enquire what were the two pieces of music used in the introductory and credit sequences. Delightfully the BBC indeed replied advising the respective sources.
Review of The Three Musketeers
