Well it’s not Playbill:
http://www.myfonts.com/search?search%5Btext%5D=Playbill

Maybe Spike Bold:
http://www.myfonts.com/fonts/quadrat/spike/

I suggested PL Latin Bold when this came up before:

http://www.typophile.com/node/28612

- Lex

My friend works at Playbill, and he says that they have a custom font based on the logo. You can see some examples of it in the videos here in the credits at the end.