A new program of reportedly authoritative, informal talks on health and medicine titled, "Ask the Doctor," debuts Wednesday on WDSU-TV (11 a. m.). Dr. Joe Meyer, associate director of {fie radibisotope unit at Veterans' hospital and clinical professor of biochemistry at LSU medical school, will lead the discussions. The program, produced with the permission and co-operation of the Orleans Parish Medical Society, will be presented on Wednesdays and Fridays. Polio will be the topic of the initial program