The week-long national syndication window opens for the 72nd episode of Star Trek: Deep Space Nine. This two-hour episode opens the fourth season of the series. Star Trek: The Next Generation regular Michael Dorn joins the DS9 cast as Worf, newly transferred to the station. J.G. Hertzler makes his first appearance as General Martok; Andrew Robionson and Patricia Tallman (Babylon 5) guest star. 
The week-long national syndication window opens for the 73rd episode of Star Trek: Deep Space Nine. Tony Todd guest stars.
The week-long national syndication window opens for the 74th episode of Star Trek: Deep Space Nine.
The week-long national syndication window opens for the 75th episode of Star Trek: Deep Space Nine.
The week-long national syndication window opens for the 76th episode of Star Trek: Deep Space Nine.
The week-long national syndication window opens for the 77th episode of Star Trek: Deep Space Nine, offering the Star Trek explanation for the legendary Roswell UFO incident.
The week-long national syndication window opens for the 78th episode of Star Trek: Deep Space Nine..
The week-long national syndication window opens for the 79th episode of Star Trek: Deep Space Nine. John Colicos reprises his original series role of the Klingon Kor.
The week-long national syndication window opens for the 80th episode of Star Trek: Deep Space Nine. The episode’s parody of the James Bond franchise reportedly draws a legal threat from the Bond rights holders.
The week-long national syndication window opens for the 81st episode of Star Trek: Deep Space Nine. Brock Peters (To Kill A Mockingbird) and Robert Foxworth (The Questor Tapes) guest star, with Foxworth choosing this role over his established recurring Babylon 5 character.
The week-long national syndication window opens for the 82nd episode of Star Trek: Deep Space Nine. Brock Peters (To Kill A Mockingbird) and Robert Foxworth (The Questor Tapes) guest star, with Foxworth choosing this role over his established recurring Babylon 5 character.
The week-long national syndication window opens for the 83rd episode of Star Trek: Deep Space Nine. Duncan Regehr (Wizards & Warriors) guest stars.
The week-long national syndication window opens for the 84th episode of Star Trek: Deep Space Nine. Casey Biggs makes his first appearance in the recurring role of Damar.
The week-long national syndication window opens for the 85th episode of Star Trek: Deep Space Nine. Tony Todd guest stars.
The week-long national syndication window opens for the 86th episode of Star Trek: Deep Space Nine. Chase Masterson guest stars.
The week-long national syndication window opens for the 87th episode of Star Trek: Deep Space Nine. Richard Libertini guest stars.
The week-long national syndication window opens for the 88th episode of Star Trek: Deep Space Nine.
The week-long national syndication window opens for the 89th episode of Star Trek: Deep Space Nine.
The week-long national syndication window opens for the 90th episode of Star Trek: Deep Space Nine. Andrew Robinson guest stars.
The week-long national syndication window opens for the 91st episode of Star Trek: Deep Space Nine. Meg Foster, Michael Ansara and Majel Barrett Roddenberry guest star; this is the only episode of the entire Star Trek franchise to give Majel Barrett a story credit.
The week-long national syndication window opens for the 92nd episode of Star Trek: Deep Space Nine. Kenneth Marshall (Krull) guest stars.
The week-long national syndication window opens for the 93rd episode of Star Trek: Deep Space Nine. Jeffrey Combs makes his first appearance in the recurring role of Weyoun.
The week-long national syndication window opens for the 94th episode of Star Trek: Deep Space Nine.
The week-long national syndication window opens for the 95th episode of Star Trek: Deep Space Nine. The episode is directed by series regular Avery Brooks.
The week-long national syndication window opens for the 96th episode of Star Trek: Deep Space Nine. Andrew Robinson, Salome Jens and Robert O’Reilly guest star in the final episode of the show’s fourth season.