Mrs Brown's Boys is the Irish sitcom created by Brendan O'Carroll, who also plays widowed matriarch Agnes Brown, and it began airing in 2011 on RTÉ and BBC One. Agnes became known for several repeated lines, and 'that's nice' stood out because she uses it as polite code for disapproval. Clips of the show circulated widely on YouTube and social media, and the short line was lifted into soundboards and reaction edits where its meaning needs no explanation for fans of the series.