I honestly thought the recent Jesus Christ Superstar has been the best of the bunch so far, for exactly that reason. Yes there was a bit of stunt casting going on (Oh, Alice...), but a lot of the lead/featured roles were played by people with a fair amount of stage experience (Brandon Victor Dixon, Sara Bareilles, Norm Lewis). I think that, along with the clever staging, set, and camera work really made it stand out, and made me kind of hopeful for the whole televised live musical thing going forward.