It will take a 300-strong production crew, 1300 backstage volunteers, 200 lights, 60 microphones, 55 hair and make-up artists and 13 cameras to get and keep Telethon 2013 on air this weekend.
For executive producer Sharon Duplex, the 26-hour telecast is the culmination of a year of hard graft that started, pretty much, when Telethon 2012 finished.
Duplex, who takes over the top job from long-time incumbent John Crilly this year, said while Telethon was planned as much as possible, it was still very much a live and unrehearsed event where almost anything could happen.
And she loves it.
"It's the adrenalin of live TV,' she said. "It's a buzz that you can't beat. I'll spend most of my weekend in the control room co-ordinating what's happening next, where we're going, who we're going to. If we do have to do a juggle and swap things around, that's my call.
"It has its moments when it's very stressful. You're trying to juggle a live cross that may not quite be ready and you're waiting. You're trying to get a particular time or moment and there's a technical problem. Then there's stress. But you always get past it and move on."
Unlike most television productions, Telethon is mostly unrehearsed because many of the stars taking part arrive in Perth just before it begins. Artists do a rehearsal of the opening show and everyone gets a run-through of the 150-page telecast schedule.
Planning for Telethon 2013 began as soon as last year's event finished, when Duplex and her team met to discuss how it went and begin preparations for the next one.
"We start locking away crews and schedules," she said. "We're also approaching artists that far out about availability and starting to lock away as many schedules as we can. A lot of that doesn't get firmed up until we get a lot closer."
The team then watch the telecast and transcribe it so that it can be archived and sections easily retrieved, if needed. In February the Telethon production team start having monthly meetings with Channel 7 and the Telethon fundraising team.
During the year they will shoot as much as possible for the telecast in advance, such as the 18 videos about the groups and causes which are benefitting from Telethon funding that year. They produce all the graphics and animations for the upcoming telecast months in advance.
Planning Telethon is so complex that the production team even has a specially designed database which lays out crew shifts, positions and tasks, and contains the schedule for the mammoth broadcast.
Duplex said the build-up to Telethon was intense as the preparations ramped up the week before.
"You're building up to a deadline that doesn't move," she said. "It's a bit like a steam train. It's just getting bigger and bigger, then it's there. Then you get up on the Monday morning and it's a little bit surreal."
This year is special for the team because Kenny Walther has announced his retirement after 27 years as Telethon's musical director. Duplex said his creativity and spark would be missed at future Telethons.
Known as a jingles king, Walther reworked the Eagles' song in 1997 and wrote the Dockers' song.