Sci-Fi Channel airs the ninth episode of the quirky modern-day science fiction series Eureka, starring Colin Ferguson, Salli Richardson, Debrah Farentino, Joe Morton, and Matt Frewer. (In the UK and elsewhere, this series is retitled A Town Called Eureka.)
The fourth webisode of Battlestar Galactica: The Resistance, a serialized story set immediately prior to the third season of Ronald D. Moore’s re-imagining of Battlestar Galactica, premieres on the Sci-Fi Channel’s website. 
The 202nd episode of Stargate SG-1 airs on the Sci-Fi Channel, starring Ben Browder, Amanda Tapping, Christopher Judge, Claudia Black, Beau Bridges, and Michael Shanks.
Sci-Fi Channel airs the 49th episode of Stargate Atlantis.
The fifth webisode of Battlestar Galactica: The Resistance, a serialized story set immediately prior to the third season of Ronald D. Moore’s re-imagining of Battlestar Galactica, premieres on the Sci-Fi Channel’s website.
Sci-Fi Channel airs the tenth episode of the quirky modern-day science fiction series Eureka, starring Colin Ferguson, Salli Richardson, Debrah Farentino, Joe Morton, and Matt Frewer. (In the UK and elsewhere, this series is retitled A Town Called Eureka.)
The sixth webisode of Battlestar Galactica: The Resistance, a serialized story set immediately prior to the third season of Ronald D. Moore’s re-imagining of Battlestar Galactica, premieres on the Sci-Fi Channel’s website.
The 203rd episode of Stargate SG-1 airs on the Sci-Fi Channel, starring Ben Browder, Amanda Tapping, Christopher Judge, Claudia Black, Beau Bridges, and Michael Shanks.
Sci-Fi Channel airs the 50th episode of Stargate Atlantis. Amanda Tapping (Stargate SG-1) guest stars.
Sci-Fi Channel airs the seventh episode of Frank Spotnitz’ sci-fi/horror series Night Stalker, a re-imagining of the 1970s series Kolchak: The Night Stalker, starring Stuart Townsend (The League of Extraordinary Gentlemen). Mira Furlan (Babylon 5) guest stars in an episode previously cancelled by ABC.
The seventh webisode of Battlestar Galactica: The Resistance, a serialized story set immediately prior to the third season of Ronald D. Moore’s re-imagining of Battlestar Galactica, premieres on the Sci-Fi Channel’s website.
The first episode of Tim Kring’s sci-fi/superhero series Heroes premieres on NBC, starring Adrian Pasdar, Jack Coleman, Ali Larter, Masi Oka, Hayden Panettiere, and Milo Ventimiglia. Richard Roundtree (Shaft) and Thomas Dekker guest star.
Sci-Fi Channel airs the 11th episode of the quirky modern-day science fiction series Eureka, starring Colin Ferguson, Salli Richardson, Debrah Farentino, Joe Morton, and Matt Frewer. (In the UK and elsewhere, this series is retitled A Town Called Eureka.)
The eighth webisode of Battlestar Galactica: The Resistance, a serialized story set immediately prior to the third season of Ronald D. Moore’s re-imagining of Battlestar Galactica, premieres on the Sci-Fi Channel’s website.
The second episode of Tim Kring’s sci-fi/superhero series Heroes airs on NBC, starring Adrian Pasdar, Jack Coleman, Ali Larter, Masi Oka, Hayden Panettiere, and Milo Ventimiglia. Stacy Haiduk (seaQuest DSV) and Thomas Dekker guest star.
The ninth webisode of Battlestar Galactica: The Resistance, a serialized story set immediately prior to the third season of Ronald D. Moore’s re-imagining of Battlestar Galactica, premieres on the Sci-Fi Channel’s website.
Sci-Fi Channel airs the 12th episode of the quirky modern-day science fiction series Eureka, starring Colin Ferguson, Salli Richardson, Debrah Farentino, Joe Morton, and Matt Frewer. (In the UK and elsewhere, this series is retitled A Town Called Eureka.) Tamlyn Tomita (Babylon 5, Star Trek: Picard) guest stars in the first season finale.
ABC airs the 48th episode of the J.J. Abrams-produced series Lost, opening the show’s much-anticipated third season. Deep analysis of clues of the show’s backstory has now become a popular pastime, not simply an internet phenomenon. Elizabeth Mitchell (V), Michael Emerson, and Henry Ian Cusick join as series regulars; William Mapother and Brett Cullen guest star.
The tenth and final webisode of Battlestar Galactica: The Resistance, a serialized story set immediately prior to the third season of Ronald D. Moore’s re-imagining of Battlestar Galactica, premieres on the Sci-Fi Channel’s website.
Sci-Fi Channel airs the eighth episode of Frank Spotnitz’ sci-fi/horror series Night Stalker, a re-imagining of the 1970s series Kolchak: The Night Stalker, starring Stuart Townsend (The League of Extraordinary Gentlemen). Previously cancelled by ABC with unaired episodes, this marks this episode’s premiere, finally completing the two-part story that the show’s cancellation interrupted.
Sci-Fi channel airs the 34th episode of Ronald D. Moore’s re-imagining of Battlestar Galactica. Dean Stockwell (Quantum Leap) guest stars in the third season premiere.
Sci-Fi channel airs the 35th episode of Ronald D. Moore’s re-imagining of Battlestar Galactica. Dean Stockwell (Quantum Leap) and Richard Hatch guest star.
The third episode of Tim Kring’s sci-fi/superhero series Heroes airs on NBC, starring Adrian Pasdar, Jack Coleman, Ali Larter, Masi Oka, Hayden Panettiere, and Milo Ventimiglia.
ABC airs the 49th episode of the J.J. Abrams-produced series Lost. Byron Chung guest stars.
Sci-Fi Channel airs the ninth episode of Frank Spotnitz’ sci-fi/horror series Night Stalker, a re-imagining of the 1970s series Kolchak: The Night Stalker, starring Stuart Townsend (The League of Extraordinary Gentlemen). Previously cancelled by ABC with unaired episodes, this marks this episode’s premiere.
Sci-Fi channel airs the 36th episode of Ronald D. Moore’s re-imagining of Battlestar Galactica. Dean Stockwell (Quantum Leap) and Richard Hatch guest star.
The fourth episode of Tim Kring’s sci-fi/superhero series Heroes airs on NBC, starring Adrian Pasdar, Jack Coleman, Ali Larter, Masi Oka, Hayden Panettiere, and Milo Ventimiglia.
ABC airs the 50th episode of the J.J. Abrams-produced series Lost. Ian Somerhalder reprises his first-season role as Boone; Kiele Sanchez and Rodrigo Santoro are introduced as new regulars Nikki and Paulo, a move much-derided by the show’s rapidly growing fandom.
Sci-Fi channel airs the 37th episode of Ronald D. Moore’s re-imagining of Battlestar Galactica. Dean Stockwell (Quantum Leap), Rick Worthy and Richard Hatch guest star.
BBC3 premieres the first episode of Russell T. Davies’ science fiction series Torchwood. Starring John Barrowman as Captain Jack Harkness (a character originating in the first season of the revived Doctor Who), the series deals with a nexus point of strange phenomena, and a team assembled to deal with those unusual occurrences, in Cardiff, Wales. Kai Owen and Tom Price guest star.