Bridgit Mendler pokes fun at on-screen brother Jason Dolley in this new still from Good Luck Charlie.

In the premiere episode, “Study Date,” Amy (Leigh-Allyn Baker) is fretting as she returns to work as a nurse, but Bob (Eric Allan Kramer) reassures her that they have a support system to care for Charlie (Mia Telerico).

However Teddy’s (Mendler) distracted by a cute classmate, PJ (Dolley) is trying to have a jam session with his friend and Gabe (Steven Perry) is feeling as if their territory has been invaded. When Bob slips and falls on the stairs, Charlie is put in the sole care of Teddy and PJ drives his dad to the hospital, where they go to great lengths to avoid mom.

“Study Date” premieres Sunday, April 4th @ 8:30PM ET/PT on Disney Channel, right after the network premiere of High School Musical.

OMG! GLC comes out SUNDAY April 4, 2010 at 8:30 pm on Disney Channel!

Who else is excited?

The family sitcom “Good Luck Charlie” follows the comedic quandary of teenagers Teddy and PJ Duncan and their 10-year-old brother Gabe when they’re unexpectedly designated babysitters for the new baby in the house as their mom Amy returns to work as a late shift nurse and dad Bob carries on with his pest-control business. Now, the whole family is involved in raising the baby and it’s up to the older kids to come home after school and take charge of young Charlotte (AKA Charlie) all while navigating typical teenage life.

Even the teenagers know that the adorable little bundle of burdens is quite a beautiful addition to the family but with burp cloths in their backpacks and formula stains on their favorite clothes, the Duncan kids have a lot to learn about the comedic chaos this baby can unwittingly create especially when she is mobile, can grasp objects and be generally destructive. Meanwhile, the “new” again parents Amy and Bob quickly relearn everything from existing on two hours of sleep, changing diapers and dodging spit up.

Hard-driving Teddy is determined to juggle her responsibilities to her family with her grades, texting and cell phone chats with friends, all while creating daily video diaries for Charlie to use for advice after Teddy has grown up and moved out. In addition to Teddy’s tips on how to withstand the household, they also relate to being a teenager and dealing with friends, boys and school.

Older brother, the easy-going PJ, spends most of his time preoccupied with girls, and with the time he has leftover, he usually practices with his band “PJ and the Vibe” or argues with Teddy about nearly everything.

Mischievous Gabe maneuvers the transition from being baby in the family to what he considers to be the overlooked rank of middle child. He also has an affinity for coming up with unique solutions to the precarious situations he finds himself getting into.

Thanks to Disnology!