sorta amusing... they were calling it "United 1501", but for runway directions they said "Northwest XXX fall in behind the Ted Airbus on Bravo..."
Which makes sense. The Northwest pilots were looking out their windows for an airplane to follow, so telling them to follow Ted is more useful than telling them to follow United. I remember listening to a ground frequency somewhere (I want to say LAX
from inside a UAL aircraft, but I'm not positive) and recall hearing instructions for aircraft to follow a "white United 737" referring to a white-topped Shuttle by United aircraft.
David / MRY