On BB and MM my two favourite TV shows AMC just blank out the swearing with little silences. On British TV they mostly just have the swearing (that link is to 'Later with Jools Holland' on BBC2). It amuses me that on Wallander they don't use much Swedish swearing** (they just say 'fan' as far as I can tell, which seems to mean 'the devil') but the BBC subtitles are all 'Christ what a bloody bastard' etc.
* Incidentally here is a wonderful Cee-Lo version of Reckoner by Radiohead. Wait until he starts to sing - fantastic: 'because we separate'. (here is the original). Radiohead has the best cover versions.
** I like the way that 'Jovla amerikan' is translated in that table as 'fuckface'