Without Warning (1994)
The greatest faux-news event since Orson Welles' War of the Worlds!
A made-for-TV movie that aired on CBS during primetime on Halloween, featuring names such as John de Lancie and Jane Kaczmarek.
Presented as a breaking news report of asteroids crash-landing on earth, and escalating to...well, an ending not quite as hopeful as War of the Worlds.
Added bonus of having caused a few slower people to believe it was actually happening, despite THIS IS NOT REAL announcements before and after every commercial break.
Wikipedia link: https://en.wikipedia.org/wiki/WithoutWarning(1994_film)
Full movie via YouTube: https://www.youtube.com/watch?v=f9xMTA7qhZM
Rotten Tomatoes: https://www.rottentomatoes.com/m/1123589-without_warning/