Format
Each week the celebrities and their partners perform a live ice dance routine. The three (as of series 6) judges (commonly known as the Ice Panel) judge each performance and give a mark between 0.0 and 10.0 (0.0 to 6.0 between series 1 and 5), depending on the performance. These total scores then create a leaderboard which combines with the public vote in order to determine the two lowest placed couples. As this is the case, the pair with the lowest score from the judges can avoid being in the bottom two if the public vote for them.
Once the scores and votes are combined to form the final leaderboard for that week's show, the two/three couples at the bottom compete in a final showdown known as the "Skate Off", where they perform their routine again. Once the couples have performed their routines for the judging panel, the judges decide on who deserves to stay and cast their votes, based on their second performance. The couple with the most votes from the judges receives a place in the following week's show, while the couple with the fewest votes leaves the competition. One couple leaves each week, but in series 7, two couple left in one week, due to numbering issues.
Read more about this topic: Dancing On Ice