The Simpsons Season 5 Episode 10
$pringfield (Or, How I Learned to Stop Worrying and Love Legalized Gambling)
With the local economy has trouble, Springfield decides to legalize gambling and Mr. Burns opens a casino. Homer ends up working there as a blackjack dealer and Marge becomes a gambling addict. Bart, after getting kicked out of the casino, opens his own, while Lisa struggles to make a costume for the school play with Marge not around.