The NAB trade show, held every April in Las Vegas, used to bill itself as the place to see kit manufacturers parade their newest wares to broadcasters and producers. Headline-grabbing black boxes that perform cool, new tricks are, however, increasingly rare.
Today's production and post-production tools tend, instead, to be software. They are, therefore, open to incremental and regular upgrades, and not tied to the cycle of trade shows.
Even the hardware is designed to evolve with tweaks to the central chip set, rather than a wholesale redesign.