Anyone noticed the 757-300 that doesn't have PTV and still have the drop down LCD screen uses a two prong plug for headset ?
Last Saturday I flew on one and was quite surprised the headset in the seat back pocket is a one prong plug, but the seat itself use two prongs, fortunately I always carried a few of those PMCO earbuds as back up, and you know those PMCO earbuds always come with an adapter, while the headset provided with UA have no adapter whatsoever, so I see my neighbors plug in the UA headset into the two prong plugs of course it wouldn't work at all. If I remembered, some of those PMCO 738 that still have no DirecTV and use drop down LCD screens also use has the two prong plugs as well.
I wonder if UA even realize that at all, basically no adapters means no entertainment ! I did write it down in the comments when I sent in the survey that I received yesterday.