This is the only episode in the series directed by veteran writer/producer/some-time actor Terence Winter. It's also the only TV episode Winter has ever directed through almost 20 years in the industry, during which he wrote or co-wrote 25 of the 86 "Sopranos" episodes, winning four EMMYs in the process.
The scene where Chris observes everyone laughing in slow-motion and looks for Tony's reaction in particular is similar to the scene from "All Happy Families" where Tony observes the slowly laughing Mafiosi and gives most attention to Feech La Manna's reaction. Both Tony and Christopher seem to look for how these important people genuinely value them in the difficult-to-fake situation of immediate laughter.
About 12 minutes in Tony is sitting at the bar in the Bada Bing, talking to a stripper, when he gets a call from Carmela. Georgie, the old bartender is seen in the background. He supposedly quit earlier in the 6th season. This indicated they convinced him to stay.
The second episode in the series whose title is a tribute to the sound and aura of the real-life "Jersey Boys" group The Four Seasons. The first, in Season 2, Episode 5, was "Big Girls Don't Cry."
J.T. Dolan is writing a script for "Law & Order"(1990). Michael Imperioli starred in five episodes of that show in a recurring role as Detective Nick Falco. Imperioli also guest-starred as a limousine driver in one episode prior to being cast in The Sopranos.