My parents worked in 麻花電台, too. That was before I was born.

Then we moved to 新302 宿舍 (behind 廣播大廈),  也是廣播局宿舍, because my father worked in 廣研所 (南禮士路). So when I went to kindergarten, I took 大班車 (石碑胡同<--> 新302) once a week. I am a little younger , so I didn't get chance go to 少年宮, 文革就開始了.  
Does this kindergarten still exist? I really want to go back to visit there next time when I go back to Beijing. It was really nice to talk to you!