Star Trek: The Next Generation
“Timescape” (S.6, E.25)

Mark’s first TV sale, sadly uncredited but an entertaining sci-fi romp nonetheless: Returning from an away mission in a runabout, Picard, Data, La Forge, and Troi are subject to unsettling temporal anomalies. Upon reaching the Enterprise, they find it suspended in time while in the heat of battle with a Romulan warbird – and milliseconds away from annihilation. Watch

Star Trek: Deep Space Nine
“Second Sight” (S.2, E.9)

Mark (credited here as Mark Gehred-O’Connell) wrote the story and co-wrote the script for this Deep Space Nine romance, in which Commander Sisko falls for a mystery “woman in red” who keeps appearing on, and then disappearing from, the space station. Could Sisko’s object of affection be linked in some way to a bombastic visiting scientist testing the infamous “Genesis Device”? Watch

Star Trek: Deep Space Nine
“Meridian” (S.3, E.8)

Another romance: this time Jadzia falls in love with a scientist on a planet that shifts between this universe and a plane of pure energy, re-emerging every sixty years. It’s “Brigadoon in outer space,” and the central question is “will she or won’t she?” when the planet inevitably phases out of our universe. This time Mark was given full credit (as Mark Gehred-O’Connell) for the teleplay. Watch

Star Trek: Deep Space Nine
“For the Cause” (S.4, E.22)

A test of Commander Sisko’s loyalty, as he discovers that merchant freighter captain Cassidy Yates is smuggling humanitarian supplies from Deep Space Nine to Maquis rebels. Trouble is, Cassidy is Sisko’s significant other and he must bring her to justice. As he struggles with his predicament, the actions of a treasonous Starfleet security officer raise the stakes dramatically. For this episode Mark was given story credit (as Mark Gehred-O’Connell). Watch

Star Trek: Deep Space Nine
“Who Mourns For Morn?”
(S.6, E.12)

A rare Star Trek comedy and an enduring fan favorite, “WM4M? was originally pitched by Mark as “Citizen Kane in outer space.” Ever silent barfly Morn dies and bequeaths his estate to best friend Quark. Good news for Quark: Morn was worth a fortune. Bad news for Quark: some nasty aliens want Morn’s treasure for themselves. This time Mark received full teleplay credit (as Mark Gehred-O’Connell). Watch

National Geographic TV
UFOs: Investigating the Unknown
(S.1, E.2, 3)

Mark serves as on-camera subject matter expert for this five-part NatGeo TV documentary offering commentary on the life and work of Dr. J. Allen Hynek and the legacy of the U.S. Air Force’s notorious Project Blue Book UFO program. Watch

HBO
Last Week Tonight with John Oliver
(S.11, E.9, 14:00)

In this popular HBO comedy news show, Mark addresses rumors of a government cover-up of UFOs, and takes a good-natured jab from host John Oliver. Watch

PBS NEWS
How a Controversial Chicago Astronomer Influenced ‘Close Encounters’

Mark is interviewed on Chicago Public TV to discuss his book “The Close Encounters Man,” delving into the involvement of Northwestern University astronomy professor Dr. J. Allen Hynek in Project Blue Book and the creation of the “Close Encounters” UFO terminology. Watch

Chicago Tonight
Discussion of Pentagon UFO Program

Mark appears on a WTTW Chicago Public TV news show for a second time to discuss the Pentagon’s efforts to debunk headline-making UFO videos, also referred to as UAPs, or “Unidentified Aerial Phenomena.” Watch

Discovery+
UFO Witness (S.1, E.1-E.8)

Mark takes on multiple roles as creator, producer, and on-camera UFO historian in this popular reality TV series based on his discovery and examination of a priceless trove of long-lost UFO case reports. A highlight of this show is a candid conversation with veteran Project Blue Book investigator Jennie Zeidman shortly before her death. Watch 

NHK
Japanese Public TV Talk Show

Reaching an immense new audience, Mark discusses all things UFO-related as part of a panel discussion. 

Far-Fetched podcast

A podcast about the highs and lows in my far-fetched career as a writer. There are many of both! Listen

COMING SOON

Guest appearances on both Ancient Aliens and The UnBelievable with Dan Aykroyd