The Big Bang Theory (Season 7)

时长:00:20:19 / 首播:2013-11-14
While rummaging through the closet, Leonard finds a DVD that should have been returned seven years ago. Leonard desperately asks Sheldon not to flip out though he remains perfectly calm. He wants Leonard to know what metaphorically what the itch in his brain is like when something isn't right and can't be scratched. He makes Leonard wear an itchy sweater until the DVD issue is resolved. Leonard searches for the store which is out of business, the owner who is dead and his next of kin that he doesn't have while also getting a bad rash from the sweater. After he takes it off, Sheldon tells him that he paid the fine years ago.
Penny meets Lucy, Raj's old friend, at the Cheesecake Factory and gets mad at her for breaking up with him by a texting. Lucy calls him to have coffee to apologize. Raj is hoping that they can get back together; however, she is now seeing someone. Penny sets him up with a friend and Raj freaks out in front of her.
Recurring character: Kate Micucci as Lucy
Guest star: Morgan Hewitt as Lizzy
Title reference: Leonard wearing an uncomfortable sweater to simulate Sheldon's sensation of an "itchy brain" when confronted with an unresolved issue.