About 12-13 years ago, I came home drunk one night and turned on the TV. There was a news broadcast about some country(?) attacking some other country(?) with nuclear weapons. At first, I was fooled to believe that this was a real news broadcast, but after a while realized that it was a movie (or maybe a TV series). I am unable to find anything about this movie or TV series anywhere, and was hoping someone here can help me?

Was it B&W or color?

Might have been "The Day After"

It may have been Countdown to Looking Glass (1984)