The Eurovision Song Contest 1971 was the sixteenth Eurovision Song Contest and was held at the Gaiety Theatre in Dublin, Ireland. The new voting system that was introduced in this Eurovision did have one big problem: some juries gave less points out than others. Whether this was done in some cases to increase their respective countries' chances of winning is impossible to say, but the shortcomings of the system were nevertheless plain. This was RTÉ's first outside broadcast in colour. Monaco's win was their first. Each country had two jury members, one under 25 and one over 25. They each awarded 1 to 5 points for each song.  Source: Wikipedia