I have to say I'm shocked at how rude some of these responses are!
I can't say I'd rather hear a screaming child over a cartoon but I guess that's the case. Go figure....
I'd rather not hear either one on a 2-hour flight in a confined space where I'm already uncomfortable and under some anxiety and stress. Is there no other option?
Since your kid is 20 months old, I am certain that you have had ample time to develop a set of parenting skills which go beyond simply flipping on the DVD player. You probably know your kid better than anyone else on Earth, so you probably know other ways to keep the kid entertained, calm, and reasonably happy for a few hours.
To say that the only choices are DVD without headphones or screaming kid is ridiculous; it implies that you have no other way to entertain, calm, or quiet your own kid than to put on a DVD. Since I'm sure that's not the case, I can only assume that what you really meant is that you have no desire to USE any of the other options, which means that you are placing your own desires above the comfort and well-being of all 200 or so other passengers on the plane.
That, in and of itself, is the very definition of rude, selfish behavior.
Implying that anyone who disagrees with rude, selfish behavior is rude or dislikes children is arrogant, and self-important.
Since I'm sure you didn't
mean to be rude, I hope you will re-evaluate your plans. I hope that you will bring your other parenting skills into play during your flights, and will be able to keep your kid happy, calm, and quiet while you're locked up in a tin can with hundreds of other stressed-out people for several hours.
And without getting into the whole "parents and kids are more important than childless adults" debate, let me remind you that there will likely be other families with kids on your flight, and any noise you or your family make can disturb them just as much as it disturbs anyone else. I would not be a happy camper if I had a toddler whom I was trying to get to sleep and couldn't because of someone else's DVD player or screaming toddler.