if you're flying 1800 on the 4th, check the Y seatmap a couple days before departure...if the map looks full, check it again around 2pm on the 4th and you might be surprised with a AC swap to a 767...especially if it was swapped on July 1. They also run the full inflight movie system on the 767 so you can use the personal screens and have extra choices. The 757 inflight entertainment is run from the ceiling screens, even in BF - the FAs never activate the seatside system even though the AC continues to the UK from EWR.