In this past Sunday's episode of 'True Blood', we learned that the vampire - Bill Compton - was turned in 1865 when he was 30 years old.
This means he is currently 173 years of age and that he was born in 1835.
Bill Compton shares his birth year with two other TV characters from classic TV shows.
Caroline Quiner was born in the year of 1835. When she was older, she married Charles Ingalls. ('Little House On The Prairie')
A son named Daniel was born into the Caine family that year; he was the half-brother to Kwai Chaing Caine. (Kwai Chaing's mother was Kwai Lin, while Danny's mother was named Elizabeth Chambers.)