("S2 Ep10")
"The Big Theory" The Romance Recalibration (TV Episode 2017) - IMDb.
Currently rewatching Season 4, Episode 21, where Priya finds loop holes in the roommate agreement to benefit Leonard for once, so Sheldon blackmails her into getting Leonard to sign a new agreement that better benefits him.
The Staircase Implementation - The Big Theory (Season 3, Episode 22) - Apple TV.
The Recombination Hypothesis is the 13th episode of the 5th season of The Big Theory. In this episode Leonard asks Penny out on a spur-of-the-moment romantic dinner for two, as they contemplate renewing their relationship after their breakup.
Episode Info Synopsis Amy and Sheldon host a Valentine's Day edition of Fun With Flags; Penny and Leonard wrestle with getting older; Howard and Bernadette make a discovery in their hot tub; Raj is torn between Emily and another woman.
The one who really takes on the brunt of this is, of course, his long-suffering roommate Leonard. He has to deal with Sheldon's demands daily, because they live together (until the very end of the series, of course), and Sheldon (being Sheldon) makes him sign a massive, intricate, 'Roommate Agreement'.
The Friendship Contraction. Leonard signs out of his roommate agreement, reducing himself and Sheldon to mere acquaintances, while Howard tries to think of a cool astronaut nickname for himself.
A Roommate Agreement is a written contract between roommates that outlines their rights and obligations while living together. This agreement includes house rules, maintenance duties, restricted behaviors, and more. For a Roommate Agreement to be useful, everyone sharing the household must agree to it.
Sheldon never met Leonard, Howard, and Raj until they were all around 24. Penny didn't move into the building until Sheldon and Leonard were both 27 and have been living there as roommates and best friends for three years; Penny was only 21 then.