![♪ 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 24
![♪ Bang! ♪
♪ Bang! ♪](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
♪ Bang! ♪
The Big Bang Theory Season 5, Episode 10
![♪ Bang!♪
♪ Bang!♪](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
♪ Bang!♪
The Big Bang Theory Season 12, Episode 21
![♪ 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 22
![♪ 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 5, Episode 17