Not so sure that solo flights really are anything at all - it is not skill, it is not courage, it is not the raw juice of human endeavour - nope, it's all about the admin boys!
Personally, a few months back I flew my airplane from the US to Barbados - 1,500 miles solo having less than a hundred hours solo since my PPL but after it being in the US for three years during which time no solo for me but I did do an hour of dual in a 152 in 2016 to get my flight review up to date.
So up to the US, less than three hours with a brilliant instructor to remind me what all the knobs and switches did - and my first solo KFXE to Stella Maris and onwards - did it with four refuel stops and 12.9 hours (seven hours off previous times), VFR, none of that IFR nonsense - straight lines is how to get places - I figured if I go down in the sea being 50 miles off shore was not worse than 300 sitting in my four man raft wondering if the GPS locator beacon actually worked;) The flight - all rather boring truth be told - one cloud looks pretty much like any other.
For me the admin was quite easy - well the writing of the cheques was a bit of a pain - go around the world and there are the infamous admin problems, I'm sure we saw the chap who crashed his home build in Japan after it sitting for a year or so.
It is nice to see aeroplane programs on TV and if it has to be celebrities - it's something up with which I can put - prefer the ones with real people though - a good one if Africa and another I saw set in Alaska - new pilots building their hours in a grand adventure before they are condemned to a career of boredom on flying 737's to Dusseldorf