The Metal Detector couch gag is the 1st couch gag of Season 17.
The Simpson family enters the living room through a metal detector, except for Homer, who sets the detector's alarm off. After four failed attempts, Homer, who is now stripped down to his underwear, is detained by a security guard who is inspecting Homer with a handheld scanning wand while the rest of the family watches.
- Homer Simpson
- Marge Simpson
- Bart Simpson
- Lisa Simpson
- Maggie Simpson
- Detector Security Guard (couch gag)
- Episode – "Bonfire of the Manatees"
- Episode – "At Long Last Leave" (Snapshot montage with other episode's gags)