The Big Bang Theory's expansion series, which will be a true spinoff to the flagship, will feature Chuck Lorre's original ...

In The Big Bang Theory, fans got to know the couple of Penny and Leonard (Johnny Galecki), who ended up happily married after a long relationship that, like any real-life one, had its ups and downs.

Best known for popularizing the character of Spock, Nimoy has made countless cameos reprising the character, including on CBS' hit comedy "The Big Bang Theory." Perhaps his best appearance on the ...