Bree Walker is making a return -- not to local news -- but to rehab ... telling TMZ she's going to seek help. As TMZ previously reported, the former local news icon was busted for DUI in Orange County, CA last month. Police say she failed a field sobriety test and when she was hauled off to jail,…

Bree freed her pup Petey after she got out of jail. We're told she had to pay $100 to get him out of Animal Control custody. Bree Walker, a famous 80s news anchor and reporter ... was busted for DUI in Orange County, CA -- and her poor dog was also taken into custody ... TMZ has learned. Anaheim…