ft
123.45 is an official frequency for over the Atlantic
(see Jeppesen 1/2 AT(H/L),Aerad etc) It used to be
131.80 but was changed about a year or so ago. This is
an official Air to Air freq. for North Atlantic use just like 126.9
over Africa etc. Very strange but true.
I agree that the intention of this freq. is not for exchange
of the latest NFL scores as tends to happen very often
by the American carriers (and also European ones) but many
pilots use it for turbulence reports to other airplanes and
relays if the HF doesn't work (again).