TV Drama: Sub-genre's

Merlin is a BBC period drama and it also incorporates another genre - fantasy. It is set in Medieval Camelot. I only analysed from 6:00 because the representation is most prominent in that scene.
Class representation - Prince Arthur is shot from below ( Merln's POV) this gives him more authority and shows his social status whilst Merlin is shot from above to give him lower status.
Mise-en-scene - As a Prince, Arthur is wearing full metal armour whilst Merlin is wearing dark rags.
The event they're practising for is a tournament which will increase Arthurs popularity and Merlin is the punchbag, one of his typical roles as a servant.
Both the characters are well spoken which I believe to be an error as in that time, servants would not have been educated. It seems to be the case for all the most of the peasants in Camelot.