Cuffi Advert

The Cuffi Adverts are a series of screamer videos that claim to be inspired by the K-fee commercials. They were released in November 2006 by YouTube user VenerableDread, maker of such screamers like Saddam Hussein Execution. Each video ends with a parody of K-fee's slogan, along with the Internet's ending variation: "Now go change your pants."

Sunset (Advert 1)
A view of the sunset is shown from the side of the road is displayed for 9 seconds. After this, a picture of Cyberman From Doctor Who appears with a guy screaming "BOOOO!" (happens to be the same sound from What's Wrong?).

Motorway (Advert 2)
A view of a motorway with a bunch of cars driving around is shown. Again, at 9 seconds, a screamer appears, this time a green-scaled image of a deformed face with the same scream as before.

Links
NOTE : The following videos contain screamers!
 * youtube.com/watch?v=zyg-QjtBteU • Cuffi Sunset.
 * youtube.com/watch?v=INWH0AMQzvk • Cuffi Motorway.