The episode where Homer gets a gun was on tonight. The main punchline is where Marg was about to put the gun in the bin at the end but sees herself in the reflection and decides she looks good with the gun so puts it secretly in her purse. However, Channel 4 cut from where Homer asked her to get rid of the gun to where she looks back 'at the camera' with a knowing smile before exiting. Anyone not having seen this episode before will not have known what that bit was about and would have missed the main joke of the episode.

Pointless editing.