I think programs like sapthaswarangal is a great idea. I think it makes people think and wonder. I can tell you that eventually it is the intellectual stimulation that will get people more involved in this. You cannot ignore film music. Somehow draw a parallel to atleast attract them towards the musical form.
Artists can present different songs in same ragas on tapes.
I like the idea of having just songs in tapes without having alapanas. Also, tapes can carry songs of similar ragams. Use the media to the fullest. I like the idea of having chats and forums. Make it global.