Premise: CBC Television welcomes back its top reality competition series that truly captures the essence of the Canadian identity. In its fourth season, ``Battle of the Blades'' pairs athletes from two of Canada's favourite sports, figure skating and hockey. Returning host Ron MacLean will be joined by judges Kurt Browning, Jamie Salé and P.J. Stock. This season will pair eight figure skaters with eight hockey players in a competition for the charity of their choice. After each performance, viewers have the opportunity to vote, putting two teams in jeopardy who will then compete in a skate-off until only one couple remains.