• Holidays/special occasions:
  • Oktoberfest (Germany)

• Holidays/special occasions:
  • Rosh Hashanah (Jewish; Tishri 1-2, A.M. 5780)

• Book releases:
  • Felicia Day: Embrace Your Weird
• DVD/Blu-ray releases:
  • Anna and the Apocalypse
  • The Death and Return of Superman
  • Doom Patrol - season 1
  • Encounter
  • He-Man and the Masters of the Universe - complete original series
  • Itsy Bitsy
  • The Pilgrim's Progress
  • Scooby-Doo! Return to Zombie Island
  • She-Ra: Princess of Power - complete original series
  • Spider-Man: Far from Home
  • Tell Me a Story - season 1

• TV events:
  • 31 Nights of Halloween, on Freeform

• Movie openings:
  • Joker
• Web events:
  • In the Tall Grass movie premiere, on Netflix
  • Into the Dark season 2 premiere, on Hulu
  • Raising Dion season 1, on Netflix

• Holidays/special occasions:
  • Astronomy Day (autumn) (Saturday; first quarter Moon)

• TV events:
  • Star Wars Resistance season 2 premiere, 6pm EDT on Disney XD
  • Batwoman series premiere, 8pm EDT on The CW
  • Supergirl season 5 premiere, 9pm EDT on The CW

• TV events:
  • Black Lightning season 3 premiere, 9pm EDT on The CW
  • Primal miniseries premiere, 12am EDT (Tuesday morning) on Adult Swim

• TV events:
  • The Flash season 6 premiere, 8pm EDT on The CW
• DVD/Blu-ray releases:
  • Annabelle Comes Home
  • Midsommar
  • Toy Story 4

• Holidays/special occasions:
  • Yom Kippur (Jewish; Tishri 10, A.M. 5780)

• TV events:
  • Riverdale season 4 premiere, 8pm EDT on The CW
  • Nancy Drew series premiere, 9pm EDT on The CW

• Holidays/special occasions:
  • World Mental Health Day
• TV events:
  • Supernatural season 15 premiere, 8pm EDT on The CW

• Holidays/special occasions:
  • International Day of the Girl Child
• Movie openings:
  • The Addams Family
  • Gemini Man
  • Jexi
• TV events:
  • My Little Pony: Friendship is Magic - A Decade of Pony special airs, 5pm EDT on Discovery Family
  • Are You Afraid of the Dark? limited series premiere, 8pm EDT on Nickelodeon
• Web events:
  • The Birch series premiere, on Facebook Watch
  • Fractured movie premiere, on Netflix
  • Little Monsters movie premiere, on Hulu

• TV events:
  • My Little Pony: Friendship Is Magic series finale, 8pm EDT on Discovery Family

• Holidays/special occasions:
  • Indigenous Peoples' Day (USA; Monday)
  • Thanksgiving Day (Canada; Monday)

• TV events:
  • Arrow season 8 premiere, 9pm EDT on The CW
• DVD/Blu-ray releases:
  • 3 from Hell
  • The Art of Self-Defense
  • Crawl
  • The Haunting of Hill House
  • The Lingering
  • Teen Titans Go! vs. Teen Titans

• Holidays/special occasions:
  • Boss's Day

• Movie openings:
  • Jojo Rabbit
  • Maleficent: Mistress of Evil
  • Zombieland: Double Tap
• Web events:
  • Looking for Alaska limited series premiere, on Hulu
  • Modern Love season 1, on Amazon

• Holidays/special occasions:
  • Sweetest Day (Saturday)

• TV events:
  • Treehouse of Horror XXX airs, 8pm EDT on FOX
  • Watchmen series premiere, 9pm EDT on HBO

• DVD/Blu-ray releases:
  • The Lion King (2019)
  • NOS4A2 - season 1
  • Satanic Panic
  • Veronica Mars (2019)
  • Wonder Woman: Bloodlines

• Web events:
  • Castle Rock season 2 premiere, on Hulu

• Holidays/special occasions:
  • United Nations Day
• Web events:
  • Daybreak season 1, on Netflix

• Holidays/special occasions:
  • Saint Crispin's Day
• Movie openings:
  • Black and Blue
  • Countdown
• Web events:
  • "Just Add Magic: New Protectors" special, on Amazon

• Holidays/special occasions:
  • Halloween ComicFest

• Historic events:
  • Black Tuesday (USA; 1929)
• DVD/Blu-ray releases:
  • A Discovery of Witches - season 1

• Holidays/special occasions:
  • Devil's Night / Mischief Night
• Historic events:
  • The War of the Worlds broadcast on Mercury Theatre On the Air, 1938

• Holidays/special occasions:
  • Halloween (Christian/Commercial) / Samhain Eve (Pagan)

All years are Common Era unless otherwise indicated (years given for other calendars- e.g., Jewish, Islamic, Chinese- will be the current year for no particular reason, unlike CE years, which generally refer to historic dates). Most calendar links are to external websites, though a very few will be to other sections of this site. For DVD/Blu-ray releases, I try to find a link for the specific movie or show on the distributor's website; failing that, I'll link to a retailer like Target.com or Amazon.com.