|  | 
	
		| date (day) | time | network | episode title | 
	
| 5/16/19 (Th.) | 11:00 PM | NGC | (#516) Journalist Christiane Amanpour | 
	
| 5/10/19 (Fr.) | 12:00 AM | NGC | (#515) Bill Nye | 
	
| 5/9/19 (Th.) | 11:00 PM | NGC | (#514) Director Darren Aronofsky | 
	
| 5/3/19 (Fr.) | 12:00 AM | NGC | (#513) Author Patricia Cornwell | 
	
| 5/2/19 (Th.) | 11:00 PM | NGC | (#512) Weird Al Yankovic | 
	
| 4/26/19 (Fr.) | 12:00 AM | NGC | (#511) Actor James Marsden | 
	
| 4/25/19 (Th.) | 11:00 PM | NGC | (#510) Actor Jeff Goldblum | 
	
| 4/19/19 (Fr.) | 12:00 AM | NGC | (#509) Actor Anna Deavere Smith | 
	
| 4/18/19 (Th.) | 11:00 PM | NGC | (#508) Author George R.R. Martin | 
	
| 4/12/19 (Fr.) | 12:00 AM | NGC | (#507) News Anchor Dan Rather | 
	
| 4/11/19 (Th.) | 11:00 PM | NGC | (#506) Actor Jack Black | 
	
| 4/5/19 (Fr.) | 12:00 AM | NGC | (#505) Vice President Al Gore | 
	
| 4/4/19 (Th.) | 11:00 PM | NGC | (#504) US Space Command | 
	
| 11/26/18 (Mo.) | 11:00 PM | NGC | (#503) The Big Bang Theory's Simon Helberg & Bill Prady | 
	
| 11/19/18 (Mo.) | 11:00 PM | NGC | (#502) Joe Rogan and the Science of Primitive Man | 
	
| 11/12/18 (Mo.) | 11:00 PM | NGC | (#501) Anthony Bourdain | 
	
| 3/4/18 (Su.) | 11:00 PM | NGC | (#420) Stephen Hawking | 
	
| 2/25/18 (Su.) | 11:00 PM | NGC | (#419) Astronaut Scott Kelly | 
	
| 2/18/18 (Su.) | 11:00 PM | NGC | (#418) Kelly Slater and the Science of Surfing | 
	
| 2/4/18 (Su.) | 11:00 PM | NGC | (#417) Frank Oz and the Science of Puppeteering | 
	
| 1/28/18 (Su.) | 11:00 PM | NGC | (#416) Sam Harris and the Science of Belief | 
	
| 1/21/18 (Su.) | 11:00 PM | NGC | (#415) True Story of Hidden Figures | 
	
| 1/14/18 (Su.) | 11:00 PM | NGC | (#414) Stephen Colbert | 
	
| 1/7/18 (Su.) | 11:00 PM | NGC | (#413) Alan Alda | 
	
| 12/17/17 (Su.) | 11:00 PM | NGC | (#412) Interstellar Space Travel | 
	
| 12/10/17 (Su.) | 11:00 PM | NGC | (#411) Salman Rushdie | 
	
| 12/3/17 (Su.) | 11:00 PM | NGC | (#410) Celestial Navigation | 
	
| 11/26/17 (Su.) | 11:00 PM | NGC | (#409) James Cameron | 
	
| 11/19/17 (Su.) | 11:00 PM | NGC | (#408) Sylvia Earle, Fabien Cousteau & Adrian Grenier | 
	
| 11/12/17 (Su.) | 11:00 PM | NGC | (#407) Katy Perry | 
	
| 11/5/17 (Su.) | 11:00 PM | NGC | (#406) SciFi Meets National Defense | 
	
| 10/29/17 (Su.) | 11:00 PM | NGC | (#405) Kevin Smith | 
	
| 10/22/17 (Su.) | 11:00 PM | NGC | (#404) Katie Couric | 
	
| 10/15/17 (Su.) | 11:00 PM | NGC | (#403) Jane Goodall | 
	
| 10/8/17 (Su.) | 11:00 PM | NGC | (#402) Kareem Abdul-Jabbar | 
	
| 10/1/17 (Su.) | 11:00 PM | NGC | (#401) Lance Armstrong | 
	
| 2/6/17 (Mo.) | 11:00 PM | NGC | (#320) Bill Maher | 
	
| 1/30/17 (Mo.) | 11:00 PM | NGC | (#319) Herbie Hancock and Wayne Shorter | 
	
| 1/23/17 (Mo.) | 11:00 PM | NGC | (#318) Science of Game of Thrones | 
	
| 1/16/17 (Mo.) | 11:00 PM | NGC | (#317) The Science of Weather | 
	
| 1/9/17 (Mo.) | 11:00 PM | NGC | (#316) Search for Aliens | 
	
| 1/2/17 (Mo.) | 11:00 PM | NGC | (#315) Hope Solo | 
	
| 12/26/16 (Mo.) | 11:00 PM | NGC | (#314) US Secretary of Defense Ash Carter | 
	
| 12/19/16 (Mo.) | 11:00 PM | NGC | (#313) William Shatner | 
	
| 12/12/16 (Mo.) | 11:00 PM | NGC | (#312) Jay Leno | 
	
| 12/5/16 (Mo.) | 11:00 PM | NGC | (#311) Terry Crews | 
	
| 11/28/16 (Mo.) | 11:00 PM | NGC | (#310) Buzz Aldrin | 
	
| 11/21/16 (Mo.) | 11:00 PM | NGC | (#309) Ben Stiller | 
	
| 11/14/16 (Mo.) | 11:00 PM | NGC | (#308) The Martian | 
	
| 11/7/16 (Mo.) | 11:00 PM | NGC | (#307) Jeremy Irons | 
	
| 10/24/16 (Mo.) | 11:00 PM | NGC | (#306) Robert Kirkman and The Walking Dead | 
	
| 10/17/16 (Mo.) | 11:00 PM | NGC | (#305) Brian Greene | 
	
| 10/10/16 (Mo.) | 11:00 PM | NGC | (#304) Time Travel | 
	
| 10/3/16 (Mo.) | 11:00 PM | NGC | (#303) Man on Wire | 
	
| 9/26/16 (Mo.) | 11:00 PM | NGC | (#302) Mayim Bialik | 
	
| 9/19/16 (Mo.) | 11:00 PM | NGC | (#301) Whoopi Goldberg | 
	
| 1/3/16 (Su.) | 11:00 PM | NGC | (#210) Gina McCarthy | 
	
| 12/27/15 (Su.) | 11:00 PM | NGC | (#209) Brian Cox | 
	
| 12/20/15 (Su.) | 11:00 PM | NGC | (#208) David Crosby | 
	
| 12/13/15 (Su.) | 11:00 PM | NGC | (#207) Mars 1 | 
	
| 12/6/15 (Su.) | 11:00 PM | NGC | (#206) David Byrne | 
	
| 11/29/15 (Su.) | 11:00 PM | NGC | (#205) Susan Sarandon | 
	
| 11/15/15 (Su.) | 11:00 PM | NGC | (#204) Penn and Teller | 
	
| 11/8/15 (Su.) | 11:30 PM | NGC | (#203) Seth MacFarlane | 
	
| 11/1/15 (Su.) | 11:00 PM | NGC | (#202) Larry Wilmore | 
	
| 10/25/15 (Su.) | 11:00 PM | NGC | (#201) Bill Clinton | 
	
| 6/22/15 (Mo.) | 11:00 PM | NGC | (#110) Norman Lear | 
	
| 6/15/15 (Mo.) | 11:00 PM | NGC | (#109) Charles Bolden/NASA | 
	
| 6/8/15 (Mo.) | 11:00 PM | NGC | (#108) Biz Stone | 
	
| 6/1/15 (Mo.) | 11:00 PM | NGC | (#107) Chris Hadfield | 
	
| 5/25/15 (Mo.) | 11:00 PM | NGC | (#106) Jimmy Carter | 
	
| 5/18/15 (Mo.) | 11:00 PM | NGC | (#105) Richard Dawkins | 
	
| 5/11/15 (Mo.) | 11:00 PM | NGC | (#104) Arianna Huffington | 
	
| 5/4/15 (Mo.) | 11:00 PM | NGC | (#103) Dan Savage | 
	
| 4/27/15 (Mo.) | 11:00 PM | NGC | (#102) Christopher Nolan | 
	
| 4/20/15 (Mo.) | 11:00 PM | NGC | (#101) George Takei |