It’s a massive cliche in television to have something (usually everything) go wrong during the course of a “wedding episode.” Even shows that are often cited as frequently avoiding typical TV cliches still have a wacky, hijinks-ensuing wedding.
Typical problems tend to include:
Someone not showing up (either intentionally or unintentionally, more often than not the groom.)
Someone deciding they love someone else
A friend/family member dying
Something wrong with the location, either another wedding or funeral in the church, it burns down, etc…
Something else wacky or crazy, like a “duel wedding,” or something.
So…have any weddings gone over just fine? The only one I can think of right now is George’s wedding from Seinfeld, but that didn’t even happen on-screen, did it?