Fox Sports 1 was trying the old sneak peak behind the scenes , which has become popular for networks.

It's where they comeback from a commercial break for a few seconds and you see the hosts preparing for the next segment, before they then cut back to another commercial break.  

Someone forgot to Hall of Fame Quarterback turned broadcaster Terry Bradshaw that the mics would be hot. 

Bradshaw threw down a big old F-bomb while talking with Jimmy Johnson. 

Fox Sports 1 apologized in a Tweet  “to Terry and viewers” for the slip which was unplanned and caught without Bradshaw’s knowledge, adding “We are reviewing our procedures to make sure this does not happen again.”

Here's the video: