I was under the impression the parents were to watch the videos before the lessons? I keep forgetting though that I used MUS Beginner - the older version before Alpha, Beta. etc. Maybe there's a difference?
I was under the same impression about there being more prep time involved with younger children, hearing that the parents had to watch the videos and then prepare the lesson for the children. I have heard (on blogs, boards, and such) that with older students, it can be a bit more independent for the student, which would be nice down the road!
http://www.cimt.plymouth.ac.uk/projects/mep/default.htm happyfamily, here's a FREE math curriculum. There's a lot to be printed, but it includes the Lesson Plans, worksheets and practice books. It starts with Kindergarten, which they call "Reception" (it's British). Someone has said that it's a lot like Singapore (I wouldn't know if it is or isn't, myself).
I think any math program for at least the first few years is going to involve lots of parental time. My 9 year old is able to use Singapore independently for the most part. He reads the textbook and works over the problems there before heading to do his workbook. We do mental math together and go over any difficult things together, but he generally does Singapore on his own. When my daughter begins school I will probably start off with Rightstart and move into Singapore at the 1B level. I tried Miquon a couple times and it just didn't make sense to me.