There used to be scheduled 747 service by SAA into FAGG during the December holidays. Stopped quite a while back though. Last saw a 744 at George about 5 months back, apparently when there where Jet A1 shortages at ORTIA, one stopped on its way from FACT- to FAJS to fill up for it's long haul to EGLL.
Quite awesome to watch one of them land at FAGG with its 2000m runway...