Work is interfering with my sleep pattern?

I have work from 4-8 pm est today and a long time boston bruins fan who loves watching them play. Great! I have no problem getting out at 8 pm then coming home to watch the b's. Now here's the problem: my boss scheduled me for 7 am to 3 pm tomorrow. FML!!! What do i do? I could DVR it but I know its going to be talked about a lot around our water cooler. If I go to bed right at 8 pm, would getting up at 4 am work so i can watch it before work??