The first double episode because it established everyone and used the silver arrow in a new way. But generally the first series episodes were among my favourites. You incorporated a lot of real history in the series, particularly in the King Richard episode. Also, I have an old Robin Hood book by Henry Gilbert. One of the bad guys in it is Sir Isenbart de Baleme.
Dates are unimportant in a fantasy.
Robin Hood is a fantasy. He never existed. Funnily enough Belleme did which was why both Henry Gilbert and I used the name. Chiefly by introducing a mystic element and making the characters younger and tougher and questioning the decisions made by Robin. Because rebels generally are young.