At the bowling alley, a sign that reads "Wednesday: THE BIG LEBOWLSKI" can be seen. This is another of many references to the movie, The Big Lebowski (1998) in this series.
The internet based plagiarism detection service used to detect plagiarism at Hearst College is similar to TurnItIn dot com, a plagiarism site universities and colleges around the world use to detect cheating on papers and reports. The site Max uses to search for Veronica's paper, www dot universitysavior dot com, is fictitious and the domain is owned by and redirects to Warner Bros.
The title of this episode, "Hi, Infidelity" is a reference to Nick Hornby's book High Fidelity, and later a film (High Fidelity (2000)) starring John Cusack. It also refers to the extramarital affairs between Harmony Chase (Laura San Giacomo) & Keith Mars (Enrico Colantoni) and Hank Landry (Patrick Fabian) & Mindy O'Dell (Jaime Ray Newman).
Patrick Fabian (Hank Landry) & Ed Begley Jr. (Cyrus O'Dell) also worked together on five episodes of Better Call Saul (2015) as Howard Hamlin & Clifford Main respectively.