Ultimate fate of the universe out a theory that has since come to be called the Big Bang theory of the origin of the universe. In 1948, Fred Hoyle set out his opposing Steady State theory in which the universe continually expanded but remained statistically unchanged as new matter is constantly created. These two theories were active contenders until the 1965 discovery, by Arno Penzias and Robert Wilson, of the cosmic microwave background radiation, a fact that is a straightforward prediction of the Big Bang theory, and one that the original Steady State theory could not account for. As a result, the Big Bang theory
Pilot (The Big Bang Theory) calling it "a great start for the series", and stating that the writing was "some of the best we've seen in a standard sitcom in some time". Matthew Gilbert of "The Boston Globe", however, gave a negative review, saying that the show is "one of those laugh-track sitcoms that has exactly one comedy routine and just keeps hammering it home". Pilot (The Big Bang Theory) The pilot episode and series premiere of "The Big Bang Theory" originally aired on CBS in the United States on September 24, 2007. It was written by Chuck Lorre and Bill Prady, and directed by