Despite its popularity and humor, many jokes have not aged well upon a rewatch. In addition, many ongoing themes throughout the show grew tired by its end, and they stand out in the present day.
In "The Panty Piñata Polarization," Penny is at the guys' apartment watching TV as she cannot afford her cable bill. When watching America's Next Top Model, Penny explains to Howard and the guys that the women on the show are in a house together in LA.
Howard and Raj map the screen to figure out where the house is. And Howard goes as far as delaying a military spy drone from a reconnaissance mission to help them pinpoint the precise location. Howard and Raj then show up at the door and lie their way inside. This is absolutely the weirdest, and genuinely the scariest, thing Howard has done, and it does not hold up as humor today.