1990 (Production)
From Trekipedia
January
- TNG Novel #10: "A Rock and a Hard Place" released.
- 1 January: TNG 158: "The Defector" airs.
- 8 January: TNG 159: "The Hunted" airs.
- 29 January: TNG 160: "The High Ground" airs.
February
- TOS Novel #48: "Rules of Engagement" released.
- 5 February: TNG 161: "Deja Q" airs.
- 12 February: TNG 162: "A Matter of Perspective" airs.
- 19 February: TNG 163: "Yesterday's Enterprise" airs.
March
- TNG Novel: "Metamorphosis" released.
- 12 March: TNG 164: "The Offspring" airs.
- 19 March: TNG 165: "Sins of the Father" airs.
- 26 March: TNG 166: "Allegiance" airs.
April
- TOS Novel #49: "The Pandora Principle" released.
- 2 April: TNG 167: "Captain's Holiday" airs.
- 23 April: TNG 168: "Tin Man" airs.
- 30 April: TNG 169: "Hollow Pursuits" airs.
May
- TNG Novel #11: "Gulliver's Fugitives" released.
- 7 May: TNG 170: "The Most Toys" airs.
- 14 May: TNG 171: "Sarek" airs.
- 28 May: TNG 172: ""Ménage à Troi"" airs.
June
- TOS Novel #50: "Doctor's Orders" released.
- 4 June: TNG 173: "Transfigurations" airs.
- 18 June: TNG 174: "The Best of Both Worlds" airs.
July
- TNG Novel #12: "Doomsday World" released.
September
- TOS Novel: "Prime Directive" released.
- TNG Novel #13: "The Eyes of the Beholders" released.
- 24 September: TNG 175: "The Best of Both Worlds, Part II" airs.
October
- TOS Novel #51: "Enemy Unseen" released.
- 1 October: TNG 178: "Family" airs.
- 8 October: TNG 177: "Brothers" airs.
- 15 October: TNG 176: "Suddenly Human" airs.
- 22 October: TNG 179: "Remember Me" airs.
- 29 October: TNG 180: "Legacy" airs.
November
- TNG Novel #14: "Exiles" released.
- 5 November: TNG 181: "Reunion" airs.
- 12 November: TNG 182: "Future Imperfect" airs.
- 19 November: TNG 183: "Final Mission" airs.
December
- TOS Novel #52: "Home is the Hunter" released.
- 31 November: TNG 184: "The Loss" airs.
