Habla español?

I am somewhat embarrassed to admit that my 4 year old knows more Spanish than I do. He comes home from Spanish class and tries to teach me the days of the week, names for articles of clothing, etc., but I am a slower learner than he is. I have wanted to learn Spanish since moving to Texas 5 years ago. Has anyone had any experience attempting to learn a foreign language alongside their children? I vaguely remember the Muzzy videos and figure if I can handle the BBC’s Scottish goat giving typing lessons I might be able to handle a giant green monster teaching me Spanish.