Peggy's picture changes into a scythe-holding Angel of Death. This was the logo of the motorcycle club in Sons of Anarchy starring Katey Sagal who played Peggy.
Actors typically use a "spit bucket" when eating on camera so they don't gain weight or get nauseous from having to repeatedly eat things when it's possible that they might have to do it over and over again due to retakes. Because of this, (even though the hot sauce is probably just red-colored water) it's impressive that Ed O'Neill (playing Al) eats as much of the Mexican food as he does without a single camera cut.
When Al is going for the magazine, he coughs. This is actually not part of the script, but Al still continues with the script.
First time Peggy mentions attending church in the series.
This episode was taped on February 1, 1991.