Question: When was the American actor and producer born who was lead actor in the television series "MacGyver" (1985–1992) and also present in Season four of "Stargate SG-1"?

full_context: Document 1: Stargate SG-1 (season 10): Season ten of "Stargate SG-1", an American-Canadian television series, began airing on July 14, 2006 on Sci Fi Channel (United States). The final season of the series concluded after 20 episodes on March 13, 2007 on Sky 1, which overtook the Sci-Fi Channel in mid-season. The series was developed by Brad Wright and Jonathan Glassner. Brad Wright, Robert C. Cooper, Joseph Mallozzi, and Paul Mullie served as executive producers. Season ten regular cast members include Ben Browder, Amanda Tapping, Christopher Judge, Beau Bridges, Claudia Black, and Michael Shanks.
Document 2: Stargate Atlantis (season 2): The second season of the television series "Stargate Atlantis" commenced airing on the Sci Fi Channel in the United States on July 15, 2005, concluded on The Movie Network in Canada on January 30, 2006, and contained 20 episodes. The show itself is a spin off of its sister show, "Stargate SG-1". The series was developed by Brad Wright and Robert C. Cooper, who also served as executive producers. Season two regular cast members include Joe Flanigan, Torri Higginson, Jason Momoa, Rachel Luttrell, Paul McGillion, and David Hewlett as Dr. Rodney McKay. The second season focuses on the Atlantis Expedition continuing to make the Wraith think that the city self-destructed, (The Siege Part III) while continuing to explore Pegasus and hunt for ZPMs (although they do have one now) this means at times lying to new allies about the city even sometimes claiming to be a small contingent that escaped the Siege; the season also marks the first time the Expedition is able to make contact with Earth although doing so uses a lot of power so the contact is oftentimes via the Daedalus, an intergalactic Earth-Asgard vessel commanded by Col. Steven Caldwell who makes clear his desire to be Military Leader of Atlantis but eventually settles for a sort of advisory role as it becomes clear that Dr. Weir and the Lt.Col Sheppard are a duo not to be messed with. The central plot of the second season is the development of Dr. Beckett's retrovirus, which can, theoretically, turn a Wraith into a human.
Document 3: Kevin Tighe filmography: Kevin Tighe (b. Jon Kevin Fishburn; August 13, 1944) is an American actor who has worked in television, film, and theatre since the late 1960s. He attended University of Southern California where he earned a Master of Fine Arts in acting. Tighe earned a role in "The Graduate" starring Dustin Hoffman and then served in the U.S. Army. Following his military service, he returned to acting, working under contract for Paramount Pictures. In 1971 he signed a contract with Universal Studios and got the part of Fireman Roy DeSoto on the NBC series "Emergency!" (1972–77). He has made many guest appearances in TV shows such as "Ellery Queen", "Cos", and "The Hardy Boys/Nancy Drew Mysteries". Tighe's film credits include "Road House", "What's Eating Gilbert Grape", and "Jade". Tighe won a Genie Award for best supporting actor in 1994 for "I Love a Man in Uniform". In the 2000s he played Anthony Cooper, the father of John Locke, on the ABC series "Lost".
Document 4: Richard Anderson: Richard Norman Anderson (August 8, 1926 – August 31, 2017) was an American film and television actor. Among his best-known roles was his portrayal of Oscar Goldman, the boss of Steve Austin (Lee Majors) and Jaime Sommers (Lindsay Wagner) in both "The Six Million Dollar Man" and "The Bionic Woman" television series between 1974 and 1978 and their subsequent television movies: "The Return of the Six-Million-Dollar Man and the Bionic Woman" (1987), "Bionic Showdown: The Six Million Dollar Man and the Bionic Woman" (1989) and "Bionic Ever After?" (1994).
Document 5: Stargate Atlantis (season 3): The third season of "Stargate Atlantis", an American-Canadian television series, began airing on July 21, 2006 on the US-American Sci Fi Channel. The third season concluded after 20 episodes on February 5, 2007 on the Canadian The Movie Network. The series was developed by Brad Wright and Robert C. Cooper, who also served as executive producers. Season three regular cast members include Joe Flanigan, Torri Higginson, Jason Momoa, Rachel Luttrell, Paul McGillion, and David Hewlett as Dr. Rodney McKay.
Document 6: Stargate SG-1 (season 9): Season nine of "Stargate SG-1", an American-Canadian television series, began airing on July 15, 2005 on SCI FI. The ninth season concluded on March 10, 2006, after 20 episodes on the same channel. The series was originally developed by Brad Wright and Jonathan Glassner, and Brad Wright, Robert C. Cooper, Joseph Mallozzi and Paul Mullie served as executive producers. The season arc centers on the new threat of the Ori, a race who Daniel Jackson (Michael Shanks) and Vala Mal Doran (Claudia Black) unleash in an unknown galaxy, and who are threatening to prepare for a crusade into the Milky Way galaxy to convert the beings to their religion called Origin.
Document 7: Don S. Davis: Don Sinclair Davis, PhD (August 4, 1942 – June 29, 2008) was an American character actor best-known for playing General Hammond in the television series "Stargate SG-1" (1997–2007), and earlier for playing Major Garland Briggs on the television series "Twin Peaks" (1990–1991). He was also a theater professor, painter, and United States Army captain.
Document 8: Stargate SG-1: Stargate SG-1 (often abbreviated as SG-1) is an adventure and military science fiction television series and part of Metro-Goldwyn-Mayer's "Stargate" franchise. The show, created by Brad Wright and Jonathan Glassner, is based on the 1994 science fiction film "Stargate" by Dean Devlin and Roland Emmerich. The television series was filmed in and around the city of Vancouver, British Columbia, Canada. The series premiered on Showtime on July 27, 1997 and moved to the Sci Fi Channel on June 7, 2002; the final episode first aired on Sky1 on March 13, 2007. With 214 episodes over ten seasons, "Stargate SG-1" had surpassed "The X-Files" as the longest-running North American science fiction television series, until it was surpassed by the series "Smallville" in 2011.
Document 9: Richard Dean Anderson: Richard Dean Anderson (born January 23, 1950) is an American actor and producer. He began his television career in 1976, playing Dr. Jeff Webber in the American soap-opera series "General Hospital", then rose to prominence as the lead actor in the television series "MacGyver" (1985–1992). He later appeared in films such as "Through the Eyes of a Killer" (1992), "Pandora's Clock" (1996), and "Firehouse" (1997).
Document 10: Stargate SG-1 (season 4): Season four of "Stargate SG-1", an American-Canadian television series, began airing on June 30, 2000 on Showtime. The fourth season concluded after 22 episodes on February 14, 2001 on British Sky One, which overtook Showtime in mid-season. The series was developed by Brad Wright and Jonathan Glassner. Season four regular cast members include Richard Dean Anderson, Michael Shanks, Amanda Tapping, Christopher Judge, and Don S. Davis.
Document 11: Richard Gere: Richard Tiffany Gere ( ; born August 31, 1949) is an American actor and humanitarian activist. He began in films in the 1970s, playing a supporting role in "Looking for Mr. Goodbar" (1977) and a starring role in "Days of Heaven" (1978). He came to prominence with his role in the film "American Gigolo" (1980), which established him as a leading man and a sex symbol. He went on to star in many well-received films, including "An Officer and a Gentleman" (1982), "The Cotton Club" (1984), "Pretty Woman" (1990), "Primal Fear" (1996), "Runaway Bride" (1999), "I'm Not There" (2007), "Arbitrage" (2012) and "" (2016). For portraying Billy Flynn in the Academy Award-winning musical "Chicago" (2002), he won a Golden Globe Award and a Screen Actors Guild Award as part of the cast.
Document 12: Stargate SG-1 (season 8): Season eight of "Stargate SG-1", an American-Canadian military science fiction television series, began airing on July 9, 2004 on the Sci Fi channel. The eighth season concluded on February 22, 2005, after 20 episodes on British Sky One, which overtook the Sci Fi Channel in mid-season. This was the first season of the show to have 20 episodes instead of 22, as well as the first to air concurrently with "Stargate SG-1" spinoff series "Stargate Atlantis" (the first season thereof). The series was originally developed by Brad Wright and Jonathan Glassner, while Brad Wright and Robert C. Cooper served as executive producers. Season eight regular cast members include Richard Dean Anderson, Amanda Tapping, Christopher Judge, and Michael Shanks. The eighth season begins with the SG-1 team trying to revive Colonel Jack O'Neill (Richard Dean Anderson) after the events of the seventh season. At the end of the two-episode season opener, Colonel O'Neill is promoted to General and assumes command of Stargate Command (SGC), while Major Samantha Carter (Amanda Tapping) is promoted to Lieutenant Colonel and assumes command of SG-1. The season arc centers on the growing threat and seemingly final defeat of the Goa'uld and the Replicators, races who were introduced in the first and third season of the show, respectively.
Document 13: MacGyver (2016 TV series): MacGyver is an American action-adventure television series developed by Peter M. Lenkov and starring Lucas Till as the title character. It is a reboot of the ABC series of the same name created by Lee David Zlotoff, which aired from 1985 to 1992. The series premiered on September 23, 2016, on CBS.
Document 14: Jack Lord: John Joseph Patrick Ryan (December 30, 1920 – January 21, 1998), best known by his stage name, Jack Lord, was an American television, film and Broadway actor and director and producer. He was known for his starring role as Steve McGarrett in the CBS television program "Hawaii Five-O", which ran from 1968 to 1980.
Document 15: Stargate SG-1 (season 1): The first season of the military science fiction television series "Stargate SG-1" commenced airing on the Showtime channel in the United States on July 27, 1997, concluded on the same channel on March 6, 1998, and contained 22 episodes. The show itself is a spin off from the 1994 hit movie, "Stargate" written by Dean Devlin and Roland Emmerich. Stargate SG-1 re-introduced supporting characters from the film universe, such as Jonathan "Jack" O'Neill and Daniel Jackson and included new characters such as Teal'c, George Hammond and Samantha "Sam" Carter. The first season was about a military-science expedition team discovering how to use the ancient device, named the Stargate, to explore the galaxy. However, they encountered a powerful enemy in the film named the Goa'uld, which is bent on destroying Earth and all that oppose them.
ground_truth: January 23, 1950