6x01 The Impossible Astronaut

I'm Spanish and according to my calculations, is likely to start arriving summer episodes of the series 7 to Spain, dubbed into Spanish. And that gives me some doubts about the dubbing and translation of new episodes.

Translation of the names of the episodes and references and jokes और British.

Translate it या not?
In Spain, not all the names of फिल्में and series are translated literally (The sound of संगीत is in Spanish smiles and tears) so it makes me think if will be literal या not, when आप translate names episodes.
In this sense, my doubts are mainly in two episodes, A town called Mercy...