So I've got problems

Title says all(:
I've got a basic idea for my one act. Like a really really basic idea. I don't know to how i'm got to get that idea across. Or how I want to do some of the stuff I want to do. My act thingy is starting to feel better on a tv screen than it would be on a stage. I want flash backs. And changes of the scene pretty quick. I want a begining that sets a mood for the play- like it was in the ending. Not sure if that's really possible. I want people to be talking to eachother- but I want you to know their expressions. On a stage you can't really really see a persons facial experesions. So i'll have to do body language): Hmm. This hard. Sad face.