For the first two guys, the video's point is that their sexual harassment, spying, and dehumanizing comments towards women are played for laughs without it being obviously wrong. The humor is in them being bad at socializing; their behaviors aren't addressed, and are portrayed as pathetic, socially repellent, but ultimately harmless.

The comments Sheldon makes are misogynist in the literal sense of the definition you gave, too, self-evidently so, IMO. The first video starts listing examples at 10:45. Again, the humor is just in the juxtaposition of average people's attitudes with his open contempt for women, with his bigotry acknowledged but never really addressed.