![♪ Bang! ♪
♪ Bang! ♪](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
♪ Bang! ♪
The Big Bang Theory Season 7, Episode 5
![♪ That all started
with a big bang ♪
♪ That all started
with a big bang ♪](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
♪ That all started
with a big BANG ♪
The Big Bang Theory Season 12, Episode 13
![♪ That all started
with a big bang ♪
♪ That all started
with a big bang ♪](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
♪ That all started
with a big BANG ♪
The Big Bang Theory Season 7, Episode 11
![...the fingerprints of string theory
in the aftermath of the big bang.
...the fingerprints of string theory
in the aftermath of the big bang.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
...the fingerprints of string theory
in the aftermath of the big BANG.
The Big Bang Theory Season 1, Episode 1
![Previously on
The Big Bang Theory...
Previously on
The Big Bang Theory...](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Previously on
The Big Bang Theory...
The Big Bang Theory Season 12, Episode 19