听下面一段较长对话,回答以下小题。
What does Bill often do on Friday night?
听力原文:
W: So Bill, what do you usually do on the weekend?
M: I often go to the movies with friends on Friday night. How about you, Sarah?
W: Well, I love seeing musical plays on Broadway with my friends. Have you been to many?
M: Not really. I saw one when I moved to New York and another when my parents came to visit, but none ever since.
Who watches musical plays most often?