"How to Live With Your Parents (for the Rest of Your Life)" is a really interesting premise filled with very appealing actors.The problem with this comedy, which debuts Wednesday at 8:30 p.m. on ABC/Ch. 4, is that it's not funny. Which is the beginning, middle and end of this story.Sarah Chalke ("Scrubs") stars as Polly, whose life isn't going so well. Newly single, Polly and her young daughter, Natalie (Rachel Eggleston), arrive on the the doorstep of her mother, Elaine (Elizabeth Perkins, "Weeds"), and stepfather, Max (Brad Garrett, "Everybody Loves Raymond"), who aren't exactly excited to see them.Elaine and Max extremely weird, but they're not bad people. So they let Polly and Natalie move in. And humor is supposed to ensue.Except that, again, it's not funny. The characters - including Polly's ex-husband, Julian (Jon Dore) - are cartoons. The jokes (such as they are) fall flat. Unless you happen to find it hilarious that grandparents talk about their sex lives in front of their granddaughter. That Elaine proclaims, "I'm very proud of my orgasms."Or if you laugh when grandpa discusses his testicular cancer. ""Do you have any idea how lucky you are to have two working balls?" Max says to Julian. "Don't squander them,"Ha?Nah.