No, DRM is not necessary, it's already proven that someone, among the 8 billion monkeys (with some really smart ones) hammering away _will_ figure out a way of liberating the data from the shackles. The whole premise is fundamentally broken in that the viewers are distrusted from seeing the data in the clear. It just adds cost, friction, and failure points.
Convenience (EASE OF USE!!!), a fair price, and content that doesn't go away are how alternative distribution methods die. Just low how bootleg booze largely doesn't exist outside of prohibition since the market functions.
