My favorite tv series (Sé que en español la palabra serie puede ser singular o plural, pero en ingles la palabra "series" siempre es plural)

I really enjoy watching tv series, I'm always watching any them. Currently I've been watching a series named called (named es correcto pero Called suena mejor) "Merlin" and now this it´s my favorite. Throghout the series Merlin and Arthur were friends, and fought a witch. I´m finishing the series, I only have to watch 1 episode more left to watch (otra vez has acertado, ero asi la oracion suena mejor). But, I don't want to watch it, because, I know it will have a sad ending. I keep putting it off , because I know Arthur will be diying die, tha's the last thing I expected!. I´m very sensitve for just about everithing. everything. However, I'm going to carry on watching the series, and maybe soon I'II get find a new favorite series xD.

You have quite good English and a good vocabulary!