The 1978 WGBH Boston Flash of Doom

Ohh, yeah! I remember this logo quite painfully. As a child, somehow the beyond eerie sound used to cause me nightmares... And it still causes me nightmares now and then.

Well, they had to find some way of giving the kiddies nightmares that would haunt them well into adulthood. :)

I remember this was on Zoom. I was scared of a lot of things when I was little, but I was never scared of this. The thing that scared me for my entire childhood was the Eat n Park ad right before Mr. Rodgers *shudders*

I think the radio equivalient of this station does the show Car Talk... : o?

Seen it a million times over the years... : I

The shows I associate this bumper with are "Zoom" (the original from the '70s, not the crappy remake) and Masterpiece Theater.