"The Simpsons: Ned 'N Edna's Blend" - May 13, 2012

Episode #507, from Season 23 of 'The Simpsons'  is titled "Ned 'N Edna's Blend", airing Sunday, May 13, 2012 on Fox and Global in Canada :

"...when the town of 'Springfield' discovers that 'Ned' and 'Edna' have secretly gotten hitched, 'Marge' offers to throw them a congratulatory reception. However, bringing everyone together makes them all realize that no marriage is perfect. Meanwhile, Edna tries to help Ned’s children become more socially acceptable by changing some of the rules..."
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