Craig Revel-Horwood has opened up about being the "longest serving Strictly judge in the world" as the final three celebrities prepare to battle it out on the dancefloor to lift the GlitterBall trophy this weekend. But the judge, 58, also shared a Strictly secret as he reminisced about when the show started nearly 20 years ago and revealed why his position on the judging panel changed in 2004, after the dance competition first aired.