January 3 / 10, 1999 - The X-Files "Terms of Endearment" / "The Rain King" (premieres)
January 24 / February 28, 1999 - The X-Files "Tithonus" / "Monday" (premieres)
March / April, 1999 - premieres of The Simpsons and Futurama
March 28 / April 18, 1999 - The X-Files "Alpha" / "Milagro" (premieres)
April / May, 1999 - premieres of The Simpsons and Futurama
May 21, 1999 - Homicide: Life on the Street "Forgive Us Our Trespasses" (series finale premiere)
May 22 / 29, 1999 - Star Trek: The Animated Series "Mudd's Passion" / "The Magicks of Megas-tu"
Summer 1999 - Syndicated Pokémon and Beast Wars episodes
September / October / November, 1999 - premieres/reruns of The Simpsons and Futurama
November 7 / 14, 1999 - The X-Files "The Sixth Extinction" two parter (premieres)
December 11, 1999 - Pokémon "The Evolution Solution"
December 19, 1999 - Mil-Looney-Um on Cartoon Network (partial)
December 20, 1999 - Various old cartoons on Cartoon Network