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Season 1 - Oct. 23, 2011
Season 2 - Sep. 30, 2012
Season 3 - Sep. 29, 2013
Season 4 - Sep. 28, 2014
Season 5 - Sep. 27, 2015
Season 6 - Sep. 25, 2016
Season 7 - Oct. 06, 2017

Once Upon a Time Season 6 Episode 20
HD
Overview:
In flashback, Snow and Charming make a special wish that Emma will be protected. The result of their wish has the whole kingdom bursting into song which infuriates the Evil Queen. Meanwhile in Storybrooke, the Black Fairy announces her plans to unleash another curse on the town while Emma and Hook prepare for their wedding.