Question: In what year did this Argentine dancing competition begin airing, in which Bailando 2012 was its eighth Argentinean season?
Sentence (from "Bailando por un Sueño (Argentine TV series)"): Bailando por un Sueño (literally "Dancing for a dream"; known simply as Bailando) is an Argentine dancing competition show airing since 2006 as part of the "Showmatch Franchise" on El Trece.
Relevant evidence: Yes