1968

Episodes

 * 05th: "The Gamesters of Triskelion" (TOS) airs in the USA
 * 12th: "A Piece of the Action" (TOS) airs
 * 19th: "The Immunity Syndrome" (TOS) airs

Episodes

 * 02nd: "A Private Little War" (TOS) airs
 * 09th: "Return to Tomorrow" (TOS) airs
 * 16th: "Patterns of Force" (TOS) airs
 * 23rd: "By Any Other Name" (TOS) airs

Novels

 * Star Trek 2 (TOS) by James Blish

Episodes

 * 01st: "The Omega Glory" (TOS) airs
 * 08th: "The Ultimate Computer" (TOS) airs
 * 15th: "Bread and Circuses" (TOS) airs
 * 29th: "Assignment: Earth" (TOS) airs

Comics

 * "The Devil's Isle of Space" (TOS)

Episodes

 * 20th: "Spock's Brain" (TOS) airs
 * 27th: "The Enterprise Incident" (TOS) airs

Episodes

 * 04th: "The Paradise Syndrome" (TOS) airs
 * 11th: "And the Children Shall Lead" (TOS) airs
 * 18th: "Is There In Truth No Beauty?" (TOS) airs
 * 25th: "Spectre of the Gun" (TOS) airs

Episodes

 * 01st: "Day of the Dove" (TOS) airs
 * 08th: "For the World is Hollow and I Have Touched the Sky" (TOS) airs
 * 15th: "The Tholian Web" (TOS) airs
 * 22nd: "Plato's Stepchildren" (TOS) airs
 * 29th: "Wink of an Eye" (TOS) airs

Episodes

 * 06th: "The Empath" (TOS) airs
 * 20th: "Elaan of Troyius" (TOS) airs

Comics

 * "Invasion of the City Builders" (TOS)

Other Releases

 * Mission to Horatius (TOS) by Mack Reynolds