12/10/2023 UA885 FCO-IAD B763 a great trip to Italy made even better having Channel 9 on both flights! I asked the Captain prior to departure and he mentioned how it’s not installed on all aircraft, etc, etc. I figured he was just trying to brush off not wanting to turn it on. As others have suggested, I turned up the IFE almost all the way and could hear it from departure until approximately 45 minutes later. Channel 9 returned about an hour ago (after we were already over far northern Maine).

Also, I noticed a ton of feedback on the 763 and 764 when listening. Have others experienced the same on other aircraft? It’s kind of like a high pitched whine.