WWE confirmed on their website that King of the Ring matches will start on Monday Night Raw. There was confusion last night since they announced the finals for the King of the Ring before they announced when the opening matches would take place. It appears that this was something that they came up with at the last minute as a final push to get people to sign up for the WWE Network during the free month trial.
As noted last night, the King of the Ring finals will take place at 8pm eastern tomorrow night. The matches will happen just before they begin taping Smackdown. The WWE Network schedule, as of this writing, lists it as just a “WWE Network Exclusive” from 8pm to 9pm and that is followed by “WWE Unfiltered with Renee Young.” That show is just 10 minutes.