A post in another thread reminded me of this.....I had actually posted this maybe a couple of years ago, when I first found this board, but I believe at the time the "old regime" deleted it for reasons unknown.....Back in the mid-70's, living in Central Florida, I noted a series of strange doin's on the local network affiliates. You would be watching a show on, say, the NBC affiliate. All of a sudden, without warning, the video would switch to the CBS network feed for a few seconds, then back again!!This happened at least half a dozen times that I personally witnessed, in various combinations of networks. Asking around, I found a couple of colleagues who had noted similar oddities.I finally asked one of the local CEs about it, and he was well aware of the problem. He claimed that the problem was in Atlanta, where in the Long Lines era there was a regional switching center that would, for instance, feed regional commercials intended for just the Southern affiliates. He said it was simply a matter of someone there "punching the wrong button at the wrong time."I never saw this happen before or since those few months in the 70's. Has anyone else seen this phenomenon occur, or has an alternate explanation?