Favourite theme songs/ pieces?

[sam42ification]

So what's your favourite theme song or piece? (I say song or piece because music can only be a song if it has words in it so if it's instrumental it's called a piece and a lot of themes are instrumental). It can be from annything; tv, games, anime ect.

Mine would have to be the NCIS theme and the X-Files theme.

 

[ThisIsSnake]

For games : The MGS theme
For TV: Doctor Who (specifically the ending theme from David Tennant's run)

 

[sam42ification]

The link to the X-Files theme: http://youtu.be/vdmtY0vux30

The link to the NCIS theme: http://youtu.be/IXmqd35KD2w