Speaking from the perspective of someone who doesn't work in the aviation industry, I think it's an OK programme.
If you ignore the accidental insults (I don't like airports, So you pilots actually do something then) and the kids observations (The 747 is the one with the big fat nose, i've been swatting up [whilst the cameraman pans the airport because he's got no idea which one the 747 is], and 'Dallas has got his table tennis bats') then it's not too bad.
I'd prefer it if they didn't repeat things quite so much (How tall the tower is, which terminal is which, the names of the ATC people).
I think it would be interesting if they showed what a pilot had to do before the actual flight, instead of pretending he just stumbles in, walks around the plane and flies it off.
I do like it though, i'll watch the last few episodes.