Standard trailers have the BBC ONE logo centred on screen throughout, and finish with the circular endboards. This trailer for 'Spooks' had the final animation altered so the circular pattern originated off its usual centre point - and looks better for it.
'The One' trailer end board.
New technology is very important to the BBC so it's no surprise to see the BBC iPlayer being pushed on trailers.
Also, the BBC HD channel is promoted for all the BBC's high-definition programmes.
Menu cross-promoting content on BBC Radio 5 Live.
Pudsey Bear making an appearance on the trailer for 2008's 'BBC Children in Need' appeal.