Discovery Channel had a good program on here at the weekend on the B-777. The text was good, some of the film clips looked a little odd. Does Gatwick have a runway 17 Center? There were also clips of AA 777 leaving "DFW" with mountains in the background.
Sometimes there are also programs with some unique/new (to me) footage on the History Channel, a sister channel to Discovery I think. Much of the programming is the tired old WW 2 ones, so my wife calls it th Hitler Channel.