This allowed them to cut Tim's show off if anything inappropriate was said, and allow it to be replaced with an emergency broadcast.

An emergency broadcast of only a few seconds and I'll have more than a dozen ships and a thousand security officers racing to my aid.

When chemical agents are detected, an alarm needs to sound, with specific warnings over emergency broadcasts and the like.

They added vibrating floors, a 10,000-watt sound system (for rumbling) and video screens showing emergency broadcasts.

If the communications log does not indicate the reception of an emergency broadcast, it is because none reached us.

Also, there is as yet no explanation for why the outpost's emergency broadcasts to the Enterprise were not received.

The modernization would also incorporate cable television systems, now in nearly 9 of 10 homes, but which now cannot receive most emergency broadcasts.

During this time there were repeated emergency broadcasts.

A quake of 6.8 could generate a local tidal wave in 15 minutes with no time for sirens or emergency broadcasts.

The idea of an emergency broadcast began with a petition started by the chairman of the station to allow for free broadcasting in emergencies.