In The Big Bang Theory, fans got to know the couple of Penny and Leonard (Johnny Galecki), who ended up happily married after a long relationship that, like any real-life one, had its ups and downs.

The Big Bang Theory writers dropped the ball by not expanding on the underrated dynamic between two series regulars.

Besides his relationship with Penny, Leonard has flings and relationships with other women throughout "The Big Bang Theory." ...

The Valentine’s Day episode would actually air on Thursday, February 14, 2013.However, the big spoiler we’re talking about is not that Leonard proposes to Penny.

Jim Parsons reacts to Big Bang Theory fans wanting Michael Keaton to play Older Sheldon in spinoff: 'I would be amazed' Jim Parsons says reprising Big Bang Theory role on Young Sheldon was 'very ...

The Big Bang Theory may turn out to be one of the last blockbuster sitcoms of its kind, and it left behind one of the most ...

On the rebound from Penny, Leonard falls into the arms of Raj’s sister Priya ... and that means The Big Bang Theory gang's all here to spread another gear's cheer as TV's most attended laugh ...

American sitcom The Big Bang Theory centers around friends Leonard Hofstadter (Johnny Galecki), Sheldon Cooper (Jim Parsons), Penny Teller (Kaley Cuoco), Howard Wolowitz (Simon Helberg) and Raj ...