Search results
- Season 1
- Season 2
- Season 3
- Season 4
- Season 5
- Season 6
- Season 7
- Season 8
- Season 9
- Season 10
- Season 11
- Season 12
- Season 1 overviewSep 24, 2007-May 19, 200817 episodesSeason 1 episodes1. Pilot Sep 24, 2007
- Leonard likes new neighbor Penny, but his roommate thinks he is chasing an impossible dream.
- 2. The Big Bran Hypothesis Oct 1, 2007
- Leonard volunteers to sign for a package, hoping to make a good impression on Penny.
- 3. The Fuzzy Boots Corollary Oct 8, 2007
- Unhappy that Penny is seeing someone, Leonard summons the courage to ask another woman out.
- 4. The Luminous Fish Effect Oct 15, 2007
- Getting fired gives Sheldon the opportunity to explore life beyond physics.
- 5. The Hamburger Postulate Oct 22, 2007
- Leonard, trying to get over Penny, has an unexpected encounter with a fellow scientist.
- 6. The Middle Earth Paradigm Oct 29, 2007
- Leonard, Sheldon, Wolowitz and Koothrappali attend Penny's Halloween party.
- 7. The Dumpling Paradox Nov 5, 2007
- Penny sleeps on Leonard and Sheldon's couch when Wolowitz takes over her apartment.
- 8. The Grasshopper Experiment Nov 12, 2007
- On a blind date, Koothrappali discovers that he can talk to the opposite sex after a few drinks.
- 9. The Cooper-Hofstadter Polarization Mar 17, 2008
- Penny tries to mediate when Sheldon and Leonard disagree about a physics conference.
- 10. The Loobenfeld Decay Mar 24, 2008
- Leonard and Sheldon try to avoid seeing Penny perform after hearing her sing.
- 11. The Pancake Batter Anomaly Mar 31, 2008
- Leonard and the boys avoid Sheldon when he gets sick, leaving Penny to nurse him back to health.
- 12. The Jerusalem Duality Apr 14, 2008
- Sheldon and Leonard look for a way to derail a 15-year-old physics prodigy's research.
- 13. The Bat Jar Conjecture Apr 21, 2008
- The guys kick Sheldon off the Physics Bowl team and bring his nemesis aboard.
- 14. The Nerdvana Annihilation Apr 28, 2008
- Penny tells the guys their obsession with comics and toys is pathetic.
- 15. The Pork Chop Indeterminacy May 5, 2008
- Leonard, Wolowitz and Koothrappali fall for Sheldon's twin sister.
- 16. The Peanut Reaction May 12, 2008
- Penny learns that Leonard does not celebrate birthdays, so she plans a surprise party.
- 17. The Tangerine Factor May 19, 2008
- Leonard finally works up the courage to ask Penny out on a date, and both ask Sheldon for advice.
Jan 10, 2019 · The Propagation Proposition: Directed by Mark Cendrowski. With Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg. Penny's ex-boyfriend Zack learns that he is infertile, so he asks Leonard for help; Koothrappali attempts to mend things with his ex-fiancee Anu.
- (2.2K)
- Comedy, Romance
- Mark Cendrowski
- 2019-01-10
- Summary
- Extended Plot
- Credits
- Notes
- Critics
- Trivia
- Quotes
Penny's ex-boyfriend, Zack, and his wife want a baby, but when Zack is infertile, they ask Leonard for help. Also, Raj attempts to mend things with his ex-fiancée, Anu.
The Posse is at an old bar haunt celebrating being together. The guys are back in Apartment 4A playing Dungeons and Dragons. Raj is getting kidded about spying on his ex-fiancée. The girls are sent a free bottle of champagne from a stranger who turns out to be Zack Johnson. He had sold his company, bought a boat and gotten married. Penny gets an in...
Guest starring:Teleplay: Maria Ferrari, Eric Kaplan & Dave GoetschStory: Chuck Lorre, Steve Holland & Jeremy HoweTitle Reference:The title refers to Zack Johnson's request to Leonard to be a sperm donor.Taping date: December 11, 2018This episode was watched by 13.53 million people with a rating of 2.4 (adults 18–49).Total viewers including DVR users 18.01 million.Caroline Preece at Den of Geek! - It also once again throws doubt on what the heck the show is going to do in its finale. It was confusing for Raj to announce a Valentine's Day wedding date since h...IMDb user reviewHalf-way through the last season.Zack's request could push Penny enough to want kids with Leonardsince another couple wants him to be the father of their kids.Audiences will get to meet Zack's new wife Marissa for the first time. It was revealed in "The Cognition Regeneration" (S10E22) that he was engaged to a woman named Sarah, but it now appears that t...Penny's Posse is having drinks in the same bar from season 4 when Amy first met Zack and experienced her first sexual arousal ("The Alien Parasite Hypothesis").Leonard:So are you saying you’re okay with this?Penny:I don’t know, but when I told you I didn’t want kids you didn’t have a say in that so maybe I don’t need to have a say in this.Leonard:Thank you.Penny:They couldn’t have picked a better person.Dec 26, 2018 · A guide to The Big Bang Theory episode `The Propagation Proposition`, the twelfth episode of Season 12, which aired January 10, 2019. After Penny runs into Zack at a bar, she and Leonard are invited to dinner on his boat where Zack and his wife ask them for an unusual favor.
Jan 10, 2019 · The Propagation Proposition. Season 12 Episode 12. Editor’s Rating ** « Previous Next » Photo: Michael Yarish/Warner Bros. Let’s start with the good part of this week’s installment, the part...
- Kim Potts
- Contributor
Dec 26, 2018 · 1212 'The Propagation Proposition' Press Release. Posted December 26, 2018. CBS has released the synopsis for the January 10 episode of The Big Bang Theory, " The Propagation Proposition ". Brian Thomas Smith reprises his role as Penny's ex-boyfriend, Zack, in the episode.
TitleDate PostedApril 19, 2019April 12, 2019April 5, 2019March 29, 2019Synopsis. The Posse is at an old bar haunt celebrating being together. The guys are back in Apartment 4A playing Dungeons and Dragons. Raj is getting kidded about spying on his ex-fiance. The girls are sent a free bottle of champagne from a stranger who turns out to be Zack Johnson (Brian Thomas Smith).
Quotes from ‘The Propagation Proposition’. The Propagation Proposition. Season 12, Episode 12 - Aired January 10, 2019. After Penny runs into Zack at a bar, she and Leonard are invited to dinner on his boat where Zack and his wife ask them for an unusual favor. Meanwhile, Raj tries to patch things up with Anu.