Season 20, Episode 15
When Reverend Lovejoy discovers that for a brief period he was not licensed to be a minister it means that when he married Homer & Marge their marriage was not legal. Desperate to make things right Homer woos Marge into marrying him again but on the wedding day he doesnt show up...
There is a funny scene with Moe at the registry office where he is queuing up to get married (blink and you will miss it!)
Homer being kidnapped and chained to a pipe in a room is a reference to Saw (2004).
Notes & Screenshots: Lord Heath