I must say big bang theory is the most hilarious tv series ever.this tv series can change your mood in no time.big big theory is the story of a friends which are highly qualified and a girl who is their neighbor.sheldon cooper and leonard are physicist which are room mates.the most funniest character is sheldon cooper in this tv series.I started watching this tv series 3 years before and I am still watching it.it doesn’t get bor even watching the series again n agian.do watch all the season’s