Best of Big Bang Theory – “Penny & Leonard”


Leonard and Penny’s relationship has been a major subject in the series since the beginning of season one pilot episode. Most of the season finales involve Leonard’s relationship with Penny in some way. 

Interestingly, this is the only major (and current) relationship on the show that was not set up by someone else or a third party. Howard and Bernadette were set up by Penny, Sheldon and Amy were set up by Howard and Raj, who posted Sheldon’s information on a dating site and set up a date, and Raj and Emily met through online dating.