With the third candle lit on the Advent Crown, there are only 151 hours to go to the great day! But there's still time to make a last-minute all-purpose decoration and send your stamps and coins to the Medi-Bike Appeal. Lorries are ready and waiting to carry your parcels free-of-charge - check the branch nearest to you in the phone book. In Trafalgar Square crowds are flocking to see the massive Norwegian Christmas Tree - a present from the people of Oslo. Simon and Christopher follow its journey from the Forest of Nordmarka and prepare for the grand Switch-on Ceremony.