I am flying the BOS-LHR route often too, so the change to 763 concerns me as well. So, pardon my ignorance, but why do these seats involve "movie eyestrain"?
<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by Kovich:
Welcome to the world of the 763
My favourites are
21B, 21H, 20C, 20G but then I don't mind bulk head or movie eyestrain
Next best are 20B and 20H</font>