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=== Broadcasting ===
== Expansion of the contest ==
[[File:Eurovision participation map.svg|thumb|upright=1.5|alt=Map of countries in Europe, North Africa and Western Asia, with Australia as an insert in the top-right corner, coloured to indicate the decade in which they first participated in the contest: 1950s in red, 1960s in orange, 1970s in yellow, 1980s in green; 1990s in sky blue; 2000s in blue; and 2010s in purple|Participants in the Eurovision Song Contest, coloured by decade of debut]]
{{multiple image
| width = 280
| footer = [[Revolutions of 1989|Changes in Europe in the 1980s and 1990s]] impacted the contest, as [[Yugoslavia]] ceased participating under one name and new countries in Central and Eastern Europe started competing.
| image1 = Eurovision Participants 1992.svg
| alt1 = Map of countries in Europe, North Africa and Western Asia showing boundaries in 1992; contest participants in 1992 are coloured in green, with Yugoslavia coloured in red.
| caption1 = Participating countries in {{Escyr|1992}}; [[Yugoslavia]] (in red) participated for the final time
| image2 = Regular Participants 1994.svg
| alt2 = Map of countries in Europe, North Africa and Western Asia showing boundaries in 1994; contest participants in 1994 are coloured in green
| caption2 = Participating countries in {{Escyr|1994}}
}}
=== Pre-selections and relegation ===
=== The "Big Four" and "Big Five" ===
=== Introduction of semi-finals ===
[[File:Eurovision semifinal qualification rate map.svg|thumb|upright=1.5|alt=Map of countries in Europe, North Africa and Western Asia, with Australia as an insert in the top-right corner, shaded to indicate their semi-final qualification rates: countries with high rates are shown in shades of blue, while countries with low rates are shown in shades of red and orange|Qualification rates per country (2004-2021; automatic qualifications not included)]]
== Winners ==
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