The opening shot of Sam's eye as he lies dead on the bathroom floor mirrors the same shot of Marion as she lies dead on the bathroom floor after meeting her gruesome end at the hands of "Mother" in Psycho (1960).
When Norman meets the sheriff after returning from disposing of Sam's body and car, he tells her it is linen day, using the same dialogue as in his conversation with Arborgast in Psycho (1960).
A side shot of the hotel reveals that the hotel has an ice box. In Psycho III (1986) the ice box played a key role in the plot where Norman had to stash one of his victims inside.
This episode was watched by 1.26 million viewers.