In preparation for the New Year, Fox's Sunday night animated families have vowed to change their ways in 2009 with these New Year's resolutions:

The Simpsons Sundays (8:00-8:30 PM ET/PT)

Homer Simpson: In 2009, I will finally get around to voting for President.

Marge Simpson: I'll try to be more assertive if it's okay with everyone else.

Bart Simpson: I plan to raise a family of skunks in Principal Skinner's car.

Lisa Simpson: I will make the world a colder, greener, jazzier place.

Grampa Simpson: Let's just make this the best 1933 we can.

King of the Hill Sundays (8:30-9:00 PM ET/PT)

Hank Hill: On a bi-weekly basis, I am going to send President Obama my suggestions for public works projects involving propane. I truly hope and believe he will be the "Propane President."

Peggy Hill: It won't be easy or pretty, but I am determined to go down two shoe sizes. And I am going to get a pair of mirrored prescription sunglasses and win the World Series of Poker.

Bobby Hill: I resolve that this year, once and for all, I'm going to lose my baby fat.

Luanne Platter: I resolve to know where my baby is at all times. And to make sure that place is never on top of the car.

Family Guy Sundays (9:00-9:30 PM ET/PT)

Peter Griffin: To use my intestinal gas in more creative and constructive ways.

Lois Griffin: To stop thinking about that yoga instructor at my gym.

Brian Griffin: Cut down on consumption of my own crotch.

Stewie Griffin: Spend more time admiring Abercrombie & Fitch window displays.

Meg Griffin: Teach myself how to shave my legs.

Chris Griffin: I know I'm young, but it's never too early to start eating more fiber.

American Dad! Sundays (9:30-10:00 PM ET/PT)

Stan Smith: To try and understand one Maya Angelou poem.

Francine Smith: To find out why jerk chicken is called jerk chicken. I hope it's not why I think.

Hayley Smith: To date a guy who has at least part ownership in a car.

Steve Smith: I am hoping to reinstate Pluto as a planet with the ultimate goal of it getting me some action.

Roger Smith: To buy a Labrador Retriever, raise it, love it and stand naked in front of it to gauge its reaction.

Klaus Smith: I will touch Ricky Martin somewhere on his head or face.

You can catch all of these programs on Sunday nights on Fox.