BB
You must have been on a CP 767. FWIW CP's J class (i.e., widebody a/c) product is identical across the fleet for domestic and international service)- seats are the same but meal service is slightly better (namely, a cheese course) on the inercontinental flights. The 767s do not have personal videos so Sony Watchmans are provided on intercontinental flights.
The 747s and DC-10s do have personal seat videos. The A-320s (and 737s) don;t have in-seat videos.
Seat pitch is best on the 747s (65"), then 767s (60") and DC-10s (50")
I will miss CP and am not sure I will patronise MapleFlot