RADIO

Jackson Has Surgery: Veteran KABC Radio talk show host Michael Jackson has successfully undergone quadruple bypass surgery, his wife, Alana Jackson, said Monday. The surgery was performed Saturday and Jackson is expected to be off the air until the end of February. Susan Estrich, who is heard Sunday afternoons on KABC, is taking over Jackson’s 9 a.m.-1 p.m. weekday program while he recuperates.