Sure, but that is only if people aren't wearing the pyramid hats and contacting the aliens for help...:-)
I believe this link to this particular program: http://www.coasttocoastam.com/shows/2005/01/21.html -- might last a little longer than the one you provided.
The Discovery Channel's earlier (2 years ago) version of their constantly-edited La Palma tsunami show said it could be 1,000 feet high and 500 miles from front to back. One of their animations showed it engulfing the entire Florida peninsula. And sure enough, right here in the middle of the state, there are 6" to 2' thick layers of sand underground, depending on how deep you dig. Makes ya wonder.
Discovery channel (I think it was) did a whole show about this possibility. There is historical evidence of a landslide causing an instant major tsunami wave around some Alaska sound. Wish I could remember the name.
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