TheBigA said:
Networks are also regulated by the FCC. They aren't going to turn it into a subscription service w/o approval.
You mean the FCC that's entertaining every spectrum buy-back plan this side of Eminent Domain?
Look at it this way:
If...when...the tipping point comes and OTA viewing is in the minority (I'm already watching 75% of my TV via online services), do you want to be the CEO who explains to the shareholders why you held onto brick-and-mortar stations until they were worth a fraction of what you paid for them?
As with AM radio 30 years ago, there are types of TV where the audience hasn't begun cord-cutting and may not for a while (religion, foreign language). Selling to them or working out a sell off of spectrum to the Feds in exchange for tax breaks and/or other useful legislation is going to make that shareholder meeting a whole lot easier.