I think it's more a case that the broadcasters are discovering that making people WAIT simply doesn't work.
Fact is CBS formerly allowed you to stream broadcast episodes of various shows
as soon as the episode had finished it's pacific time airing.
Meaning that I could watch (for example) a CSI episode that originally aired at 10pm eastern time at 1am the following morning, as soon as the pacific time airing had completed.
South Park studios did the same. (though for SouthPark I'll actually support Matt and Trey's excellent work, I buy the DVD's)
Call me old fashioned, but I like physical copies
the delay in the hopes that they'd sell more DRM copies on iTunes if they delayed
allowing it to stream on the web is misplaced, all it did was force me to buy a better PCIe Tuner card to put into a dedicated system I threw together specifically to DVR the shows myself (Picture me with middle finger raised on high)
So this new item about a broadcaster (CW) realizing that delaying access didn't work.
We can only hope others will learn the same lesson