Yes, those Murrow tours are almost impossible to sign up for. Another option to attending their open houses is to talk to people from the school at the High School fairs.
Last year I spent a good amount of time talking to a Murrow guidance counselor, a teacher, an AP, and a whole bunch of students. While no, I wasn’t seeing the school, I spent some serious one on one time with lovely people who gave me a good sense of what the school’s about and who the students are. Nice to have another potential option to finding out more.