They had a whirlpool of colour (though purple was dominent before the yellow as a background, if i remeber right, didnt they? I always remeber that tune to be followed by Chris Jarvis and Josie D'Arby's version of the song a kid won a competition with;
#Feeling down, get off the ground, turn on your TV, wacky, funky, fun to watch, Children's BBC#
The background music of this era was used a lot during hot 1998/99, maybe 2000 too. And as many may have seen re surfaced a few months back, within the bugs era on BBC ONE, it was nice though!