It all indeed started with a Big Bang over 11 years ago when The Big Bang Theory premiered on the screens. And now, all these years and 12 seasons later, the show aired its final episode only recently. Several fans wondered as to how will the iconic show end and will it be an apt conclusion to the show's legacy. It indeed was as the show ended with Sheldon Cooper's (Jim Parsons) emotional speech which is sure to have made you teary-eyed.
The final scene of the two-part series ender featured the gang gathered in Leonard and Penny's living room for Chinese food in a scene set to a new version of the show's now-iconic theme song, performed by the Barenaked Ladies.
As it turns out, the song in the scene — which was filmed on a closed set to allow the cast to share the special moment together with the creators and crew, was something Lorre wanted to do way back during Big Bang Theory's development stages.
"Twelve years ago, [Barenaked Ladies lead singer] Ed Robertson sent a demo of that theme song — just him and an acoustic guitar. I thought it was great and I said, 'That's our theme song.' He said, 'No, we're a band, we do everything as a band. We have to re-record this as a Barenaked Ladies song with the whole band."
Lorre wound up relenting — a point he now says, in hindsight, was the right decision — and the song, dubbed "History of Everything," became synonymous with Big Bang Theory for diehards.
"One of the gifts of being part of this series all these years was Ed Robertson and the Barenaked Ladies have just given us an enormous boost," Lorre says. "That theme song gives you such a good feeling at the beginning of every episode. It's a remarkable little piece of music. I defy anybody to listen to that song and not smile."
Lorre added that using the concept for the original song was an important part of the series finale, which wound up focusing on the characters' "emotional closure" rather than sending everyone off in different directions and wrapping the show up with a big bow.
"I just thought maybe it would be appropriate to go back to that acoustic version, slow it down, imbue it with a melancholy mood and take us out and that be our last piece of the finale," Lorre said.