I don’t see how nbc has any right to pull the video. c-span’s logo was used for the skit so it could have something to do with that.
That’s the plausible deniability. Easy enough to edit the C-SPAN bug.
The only time National Lampoon lost a lawsuit was concerning a spoof of a VW ad which stated “If Ted Kennedy had driven a VW, he’d be president.”
Increasingly difficult to find this video.