Large corporations rarely innovate and try new things. Most innovation comes from smaller players with limited market share taking risks.
Large companies buy out smaller ones who create cash cows from taking large risks. The large company then milks the cash cows until they are completely dead.
The consolidation of studios to a few megacorporations has led to this inevitable end. The solution is simple: break them up. If we have 30 or so similar sized studios competing, we will get better movies/TV again.
If I recall correctly they linked a bunch of powermacs together with FireWire.