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Teletoon at Night Bumper
Teletoon, basically the Canadian equivalent to Cartoon Network, aired an ID featuring a screamer not long after their launch in 1997 as part of their former adult block "Teletoon At Night".
ID
Everything is done in stop-motion. The ad takes place in a city at night, where a lone baby carriage rests. A baby's face can be seen within it. After the music builds up, we see in a close up that the face is moving. Not long after, the face bursts like paper to reveal a set of monstrous teeth, which opens to reveal more teeth followed by a toothed appendage that hits the camera. All this is accompanied by a low pitched version of the (eventual) K-Fee scream. The Teletoon logo is then displayed jittering on a black background.
Link
NOTE: The following video contains a screamer.
youtube.com/watch?v=uZFUHrQ9gJA