Hope this helps, on G-CEJM. business seats 22 - pitch 38 inches.
IFE - each business pax gets a personal unit and also headsets to watch the main IFE.
Premium economy is a service upgrade seat which means that pitch is the same as no frills but pax get higher luggage allowance, comp bar/meal and IFE headsets.
The a/c is very nice inside.