I have Baby Signing Time dvd for Sam and I've been using basic signs with her all along. She understands eat milk but so far no signs from her (she's 9 months) except maybe "all done" but if she is signing that it's too soon and she's underweight so I can't accept that she is done even if she thinks she is. Signing is not supposed to interfere with spoken language and should actually help but each baby is different. In any case I will do what I can to start communicating with her as early as possible. So far I have found that I understand my dog better and she was easier to figure out!

I didn't know about the pbs program so thanks for the info I will definitely check that out!