While Penny worries that dating Leonard has ruined her for normal guys, Wolowitz and Koothrappali search for Sheldon’s perfect match online. Incoming search terms for the article:watchseasonepisode net episode-23-the-lunar-excitation

Leonard tells Penny about how he met Sheldon for the first time…and what happened to the elevator.

Leonard and Sheldon compete for the attention of a famous female physicist. Incoming search terms for the article:tvepisodes-online com episode-21-the-plimpton-stimulationwatchseasonepisode net episode-21-the-plimpton-stimulation

When Leonard and Penny aren’t speaking, Sheldon goes to extremes to keep them both happy.

A fight between Leonard and Penny threatens their relationship, while Sheldon battles Wil Wheaton in bowling.

Sheldon’s friends come to his aid when his fear of public speaking stands between him and a coveted award.