In "Phantom Traveler" Sam and Dean listen to their father's answering machine and Dean's cell phone number is given. Here in "Home" Dean leaves his father a message but the number given in the recording is different than in the earlier show.
When Sam is being choked by the lamp cord by the poltergeist, the lamp on the floor behind his head continues to jump from right beside his head, to being very far away in the background.
When Richie gets trapped in the refrigerator, the door slams behind him and the child lock is closed. When his mum finds him, the child lock is open.