While playing World of Warcraft, the group attempt to retrieve the Sword of Azeroth. Sheldon betrays them and sells the sword on eBay which Howard buys.
Sheldon
Nimoy on Big Bang Theory?
The Big Bang Theory is beaming up Leonard Nimoy. The Star Trek icon will fulfill Sheldon’s lifelong dream when he makes a cameo on the show’s March 29 episode.
Reggie's Take.com 