Thursday’s The Big Bang Theory found the guys excited to buy tickets for San Diego Comic-Con, the massive annual convention about comics and sci-fi/fantasy/horror movies and TV.
The Big Bang Theory airs Thursdays at 8/7c on CBS.
A sitcom as traditional as The Big Bang Theory should know this.
There should have been three mentions of Dumbledore, and on the third reference we should have seen Sheldon in his Dumbledore costume.