SSH will be B757 from CWL
Rescue 767 is a figure of speech....2 767's operate for TCX, only 1 of them is scheduled for 100% of the week, the other for approx 50% of the week, leaving 50% of the week available as a spare aircraft.
It is either 767 - not a specific one.
the GLA A332 will be rotated and they all have seatback TV's