We’re being facetious, of course; there is no way the corporation could promote Doctor Who without trailers that can be used on various shows, which is who these clips come into being.
However, we would suggets that you don’t click play if you want to remain totally spoiler-free. Nothing in these clips gives away anything you wouldn’t have already foreseen, but the warning is there…
Clip one sees River Song (Alex Kingston) and Rory (Arthur Darvill) at the Stormcage:
She looks like she’s going to sneeze, doesn’t she?!
Meanwhile clip two sees Dorium Maldavar (Simon Fisher-Becker, somehow channeling The Ribos Operation‘s Garron) discussing the oncoming storm with Madame Kovarian (Frances Barber):