If you love traditional 2D animation, this show is for you. I specialize in combing hand-drawn methods with digital. My intention is to make a web cartoon series that doesn't look like a web cartoon series.
We're offering lots of cool prizes like t-shirts, DVD's, concept art, and even a caricatured cameo on the show.
A very interesting premise for this project, to say the least!
The flip side is "Monsieur Bébé," a French series that ran for 48 13-minute episodes, starting in 2009.
Synopsis: Seated on his chair in the middle of the kitchen, Mr. Baby is rather chatty for his age... He's only 15 months old, yet he talks and reasons like a 50-year-old. A manipulative child king and domestic tyrant, he imposes his distanced vision of life and his moods on his extraordinary family, who forgive him everything, or almost.
I don't think you'll be sued -- if that's what's on your mind -- since you made a post expressing surprise about the French series.
Clearly, you came up with your idea yourself, and unless you know French, it's very doubtful that you knew about the other project.
As well, your idea of a baby trapped in a man's body is the reverse of the concept in the "Monsieur Bebe" ("Mr. Baby") series. In the 1960s, concepts were sometimes switched around to produce rival series: "The Beverly Hillbillies" had a country family moving to the city, while "Green Acres" had a city couple moving to the country. Nobody got sued.
I would suggest, however, that you get your idea copyrighted -- at least for distribution in the English language -- to protect your own work from being the subject of a suit, or from being duplicated and sold by someone else. As far as I know, "Monsieur Bebe" has never been released in English; I got the synopsis in English from the site of TV5MONDE USA, a pay-TV channel which distributes French-language programming in the United States.