This series ran for 72 episodes over 3 seasons.  Swamp Thing and Anton Arcane return as the stars, supported by a number of original characters.  There are also appearances by some of the comic book characters (or, at least, approximations of them), including General Sunderland, Alec Holland, and Abigail (here as a synthetic human who has escaped from the lab).  Dr. Woodrue is mentioned a few times but does not  appear visually. In this series, Linda is Swampy’s deceased wife, not sister as she was in the 1982 film.

Cast:
Dick Durock as Swamp Thing
Mark Lindsay Chapman as Dr. Anton Arcane
Patrick Neil Quinn/Lonnie Smith as Dr. Alec Holland
Kari Wuhrer as Abigail
Jacob Witkin as General Sunderland
Martha Smith as Linda Holland

Summary:
The series follows Swamp Thing’s adventures in the Louisiana swamp as he meets and helps locals and foils the evil plans of Dr. Arcane.  For a more detailed episode guide, see CultTVman’s Swamp Thing Episode Guide.

Release:
Four episodes were released on VHS in 1990, but this was otherwise unavailable until the comprehensive DVD releases detailed below.

Swamp Thing : The Series. 4x DVD (540 min.), Shout! Factory, 2008. Region 1, NTSC (USA/CA). Collects all of Seasons 1 & 2 (22 episodes), presented chronologically. Includes interviews with Dick Durock and Len Wein. ISBN: 1603990321

Swamp Thing : The Series, Volume Two. 4x DVD (540 min.), Shout! Factory, 2008. Region 1, NTSC (USA/CA). Collects the first 26 episodes of Season 3, presented in order of original broadcast date. ISBN: 1603990763

Swamp Thing : The Series, Volume Three. 4x DVD (510 min.), Shout Factory, 2010. Region 1, NTSC (USA/CA). Collects the final 24 episodes of Season 3, presented in order of original broadcast date. ISBN: 1603994858

Swamp Thing : The Series, The Legend Continues. DVD (154 min.), Shout Factory, 2010. Region 1, NTSC (USA/CA). Contains 7 episodes selected from various seasons of the show. ISBN: 1603995048

Bibliographic References:
Daniels, Les. “Swamp Thing on Screen: Swamp Thing, I Think I Love You.” DC Comics: Sixty Years of the World’s Favorite Comic Book Heroes, Bulfinch Press, 1995, pp. 182-83.
Plot and production details and brief reviews of the 2 feature films and live-action series.

Hofius, Jason, and George Khoury. “Swamp Thing.” Age of TV Heroes, TwoMorrows, 2010, pp. 144-49.
Some quotes from producer Michael Uslan about the success of the films and the decision to make a live action series, followed by a description of the series and the crew involved.  There are many quotes from Durock about the character and the suits, with some biographical information.  Also some details about the filming and the success that lead to the series being commissioned for 72 episodes.  Many large colour photos throughout, including another image of Swampy on page 16.

Mangels, Andy. “It’s Not Easy Being Green: Swamp Thing.” Back Issue, no. 92, Oct. 2016, pp. 3–11.
The article gives a short history of the comic and provides production and release details of the television series.  Includes lots of quotes from Durock from an interview conducted for Amazing Heroes in 1991, while the television show was still being produced.  The article also provides some information about both films, the animated series, and other minor television appearances.

Muir, John Kenneth. “Swamp Thing.” The Encyclopedia of Superheroes on Film and Television, McFarland & Co., 2004, pp. 524-32.
Provides an overview of the comics, the character, and the screen adaptations, before going into more detail about each of the films and television series.  There is a complete list of episodes from the live-action series, with some cast and crew credits and broadcast dates.

Further Links:
– Wikipedia provides a good overview of the release history and reception.
– IMDb includes some production details, reviews, and a message board.
– Arcane Knowledge provides a detailed episode guide and biographies of cast and crew.  There is also document created by series writer Tom Greene detailing some of his plans for the series and characters, but I have had trouble accessing the file properly.
– CultTVman’s Swamp Thing Page provides synopsis and production information for the television episodes, and a few pages about the films and cartoon.