On Location is a series from HBO. The series premiered on New Year's Eve 1975 with a one-hour performance by Robert Klein and became a source for uncensored stand-up comedy performances from performers . . .
Imagine planning a TV show where you had eight people travelling 12,000 miles over 50 Days - and no idea exactly how they would do it.
The pairs were given the cost of a single airfare from London to Singapore, in cash - The Catch being, they couldn't take a single flight.
Oh and they weren't allowed bank cards or smartphones. And had to check in at five checkpoints along the way, only learning the location of the next one when they arrived.
The Journey would take in stunning sights, emotional epiphany, weird Weather - and goat polo. Yes, goat polo. With countless possible options every single day, All That was going to take a lot More Than a simple risk assessment form for the production team.'Leap into the unknown'
So here was The Challenge , taken up by the teams (five started the race, and six pairs took part in All - But one team had to be replaced in The First episode due to A Family emergency, And One was eliminated at the second checkpoint):Felix and Josh sampling local delicacies in Vietnam
"It's been a year in the making," explains Mark. "We got two assistant producers to do a recce first. It's All very well doing theoretically, looking at timetables and things. But until someone does it for real, you don't know where the difficulties might lie.
"One of the poor sods had to do the actual trip again as they were attached to one of the teams - he was very stoical and didn't tell them until the very end though. As much as possible, we wanted it to feel like a dry Run . "Father-and-son Darron and Alex hitch-hike in Cambodia
While things like visas and vaccines "for every conceivable country" were sorted in advance, there were some things they hadn't thought about.
"We found Out currency changing places are never near the main hubs," he says. "And internet cafes were so Scarce - because everyone has smartphones now. Things like that were really useful to find Out . "
The teams were:Elaine and Tony taking the Scenic Route
The lack of knowing in advance what was happening was part of The Show 's beauty, he says.
"They were given a licence to go where they wanted," says Mark. "It was so important they owned their own journey. And it made it more dynamic.
"Everything they did was their own decision. So when we had Darron and Alex seeing The Elephants in Cambodia, Josh and Felix going climbing in China - it was their decision to spend their time or money that way, to have those experiences.
"The whole race was a balance between the speed and The Experience . It's a once-in-a-lifetime trip. If you have the opportunity to stop in paddy fields, or rush ahead, what do you prioritise? Can you travel smartly and have these experiences too?"What didn't viewers See . ?
"The embedded crews were amazing because they had to do the same journey as them, sleeping alongside them on the bus, they weren't given a five-star hotel. So they were almost like A Family , with its ups and downs.
"And while we had done recces, the teams found bits of The World which were totally surprising. Josh and Felix went off the beaten track, doing goat polo. It was so interesting having those windows into The World . "Shameema and Natalie, who have been friends for years, decided to take a trip before turning 40 next year
There was also a director of photography travelling behind the teams, and they had GoPro cameras when there wasn't as much space, like in boat Cabins - meaning the cameras were there 24 hours A Day , from the moment they woke up. Drones were used too, to capture the landscape.
A safety adviser worked On Location in some places, and there was a medical support vehicle in place in some countries, travelling an hour or so behind the teams.
While he initially thought it would make great TV, especially as All teams happened by chance to be on the same ferry, that feeling diminished when they were stuck for Five Days in deteriorating conditions.
But there were more positives than negatives.