The Big Bang TheorySeries 5 Episode 6: The Rhinitis Revelation
Sheldon's mum Mary comes to visit and soon becomes a firm favourite with all of the gang. Sheldon is annoyed with his friends for liking his mum but refuses to believe that he's jealous of the time they're spending with her. However, when he falls ill with a cold, he's secretly pleased that his mum focuses all her attention on him.
- Original air date