Jon and Kate Gosselin
You should know Jon and Kate Gosselin from the reality TV show Jon and Kate Plus 8. The show was basically about how Jon and Kate managed to run a household while raising eight growing children. For opening up their homes to the cameras, they received an estimated $75,000 at least per episode for 11 seasons.
And then Jon went and mucked everything up by cheating on Kate with the nanny. This led to the instant cancelation of the show, their divorce, and Jon working as a DJ at nightclubs. As for the money the couple earned, it all went to raising the kids. It takes a lot of money to feed and clothe children.