No, this is not a postponement of the show due to the naval ship sinking. This show is officially coming to an end. The show Sweet Night had started in January 2010 and was a continuation of the show Champagne. Sweet Night featured Shin Dong Yup as the main MC with Kim Hye Jin and had Jo Hye Ryun, Kim Jong Min and Kim Young Chul as assistant MC's. The show abolished the previous ideal type World Cup segment and instead reunited guest celebrities with their old friends. But the concept was too old school and didn't have a refreshing tone to it. This resulted in bad ratings and the show is now coming to an end after just three months of airing. Happy Birthday will air in its place. Happy Birthday actually started airing as a pilot program a few weeks ago. Let's see how that show does.