Actually, in the words of Beloved Leader LB: “‘No longer a necessity?’ Goddamn it, it never was!”
Here’s the BigMedia perspective, however, from FX and Fox, courtesy of Indiewire:

by Alison Willmore
While the film industry continues to see seismic shifts in the way movies are made, released and monetized, the television industry is experiencing its own major changes. Viewers have been drifting away from live TV in favor of recording things on their DVRs and zipping through the commercials, or cutting the cord entirely and consuming series online.