I can't speak much for the media's position on family matters, as I got rid of television years ago. But I think maturity, manners and responsibility vary by household. I also think it's important to define respect. What exactly do you consider being respectful to elders?
I grew up with kids who were very polite and mannerly around their elders, and placated their parents, but lived just as sinfully as anyone else without their parents' knowledge. Then you have teens who challenge their parents' decisions. Which one is more respectful? The teens who sneak around doing whatever their heart desires, but put on a nice show for their parents, or the ones who actually communicate their grievances (albeit unrefined) with all the passion and inconvenience that we call teenage rebellion? I would argue that at least these kids are trying to win their parents' approval, trying to share their feelings, and hoping to reach a common ground. When it doesn't happen - particularly when it fails repeatedly - they feel frustrated and unvalidated and express it in ugly ways like "I hate my parents." I would argue that in many cases, they don't hate their parents, but hate the lack of connection they have with their parents.
Be careful not to confuse respect with convenient behavior. Teens can placate and even manipulate adults without making a scene. That doesn't necessarily mean they respect those adults, or that they will carry their values into adulthood. I would even suggest that parents whose teens "hate" them are being lazy. If all you are doing is telling them "no" to what they want, instead of sharing your actual concerns and expectations with them, then you're not training them to be adults; you're just putting them on a temporary leash. If it takes a video to explain parents' motivation, then they're not parenting well.
I would also be careful to label kids with an "entitlement" mentality. Are kids being given responsibilities or opportunities to contribute to the household? Or are they just being told to wait for adulthood and stay out of trouble in the meantime? I think maybe adults get more frustrated with kids as a whole than they need to, partly because they are comparing what they did and had to what today's teens do and have, and partly because they just find the unrefined nature of teens to be unpleasant. Kind of the "kids should be seen and not heard" mentality. Perhaps it would be useful to debate specifics?