So now the list of Fox FDD episodes is as follows (12 out of 13 identified).
Brotshuls Vs. Duncans
Chews vs. Wilfrids
Datz-Lerners vs. Dieroffs (Lou Ferrigno vs. http://doubledarehq.proboards.com/index.cgi?board=familydoubledare&action=display&thread=11&page=1#\' title=\"Click to Continue > by Browse to Save\">Weird Al Yankovic)
Dugarys vs. Marinis
Fondaks vs. Fischlers
Gudelunas vs. Keeneys
Kudlas vs. Sterns
McGoldricks vs. O\'Donnells
McKenna vs. Millhouse
Scharles vs. Lentz
Southwicks vs. Doerrs
Winwards vs. Reillys
The only thing missing is the \"special one-hour episode\". Yes, the original 1988 version had one. I remember researching it on old L.A. Times newspapers, which also mentioned there being a Kudlas Vs. Sterns episode.
Finally, I remember reading on the old Invision boards that the Brotshuls Vs. Duncans episode was the one where:
During the final obstacle, \"Inside Out\", the Brotshul family got the flag with no time left on the clock, and Marc had to ask the Judges if they actually got it. Thankfully, they did.