Marie's canister can be seen in Ray and Debra's kitchen. Two episodes prior, in "The Canister", she and Debra argued over where the canister was, and once it was found at Ray and Debra's they went to great lengths to smuggle it back into Marie's home without her knowing it. At the end of the episode Marie gave Debra the canister and it spent the rest of the run of the series in the background of Ray and Debra's kitchen.
This is the only episode where Ray and Marie don't actually share a single scene together.
According to the Belgian Society of Authors, Composers and Publishers, this episode's preliminary title was "Robert Haters".
When Deb pulls a slab of meatloaf and bottle of ketchup from the fridge, it's a plastic bottle of Heinz ketchup.