Reality TV series Keeping up with the Kardashians has just returned for its 16th season, meaning the family's fights and blatant plugs for their product lines are once again on full display. The series has now been running for just over a decade, with the family's fortunes growing in tandem with it. Kylie Jenner - who when the series started was just nine-years-old - is now 21 and a billionaire.