Merlin is a BBC show that went on for 5 seasons it was a very popular show that got nominated for lots of awards. Which is now on Netflix(July 2020).
Summary
Merlin is a show about a boy named Merlin who has come to Camelot to be under the wing of the physician to find out what to do with his magic powers. Here in Camelot you can't use your powers.
So because of this Merlin reluctantly cannot use his powers against Arthur (the bully)
Also in Camelot is witch trying to get revenge for the death of her son by killing Arthur the son of the king. But Merlin stops it. And he finds destiny which is to protect Arthur form all the people trying to kill him.
My thoughts
Overall, for the 1st episode of a series, it's not bad.