The concept of January 1st as a fresh start—a theme often used in these "S2E1" episodes—dates back to when Julius Caesar introduced the Julian calendar. He chose January to honor Janus , the Roman god of beginnings, who is depicted with two faces: one looking back at the past and one looking forward to the future. Mark Watches 'Sense8': S02E01 – Happy Fucking New Year.

: The episode features a globally-spanning birthday and New Year's party sequence set to tracks like Avicii’s "Feeling Good" and Steve Aoki’s "Home We'll Go". The Morning Show (S2E1)

In television, "Happy New Year" (or variants like "Happy F*cking New Year") is a common title for the first episode of a second season, often marking a significant narrative shift or a literal time jump to the start of a new calendar year.

The Justice League is under investigation for a "missing 16 hours" during which they were controlled by Vandal Savage. Title : "Happy F*cking New Year."

The episode introduces a major conflict involving Krolotean aliens and the intergalactic bounty hunter Lobo.

: December 23, 2016 (as a Christmas/New Year's Special)