Connections

Harold and Rhonda are seen entering the Tunnel of love in a visual callback to operation Ruthless

When Arnold is in the comic shop two comic books behind him make CatDog.

The moment Sid and Stinky walk by a comic shop a comic book witht he name Spongebob can be seen beside the door.

Love and Cheese is essentially the same plotline as Operation Ruthless, right down to the same gags. In fact, the working title was "Operation Lila-less".

The fantasy sequence with Arnold and Lila eating a cheese wheel spoofs the spaghetti scene.