$3.1bn
Revenue earned through television syndication deals by the 180-episode television comedy Seinfeld , which last aired in 1998. Almost all syndication money – effectively cash for repeats – is profit.

$400m
Sum collected by each of its creators, Jerry Seinfeld and Larry David, from the five rounds of syndication deals to date, according to the Financial Times .

$4.9bn
Net income earned by Amazon since it began trading as a public company in 1997, putting the size of the enduring Seinfeld cheque machine into a rather flattering perspective.