As you quoted my post I'll weigh in that these particular shows (old B/W game shows from the 50's and 60's) just seem to have a rhythm to them that lulls, even though they're interesting. Now, we used to fall asleep to the Tonight Show, etc., but as the late-night talk shows have taken a very political turn in the past few years, they don't lull.
And as for being contrary, that's interesting as most people I know fall asleep to TV. In any event, as the TV is on a timer (usually 30 minutes) I drop off pretty quickly (versus having my brain running if there's silence), and I get a good night's sleep.
YMMV.