It’s the TV event that runs more than 24 hours non-stop and, since it’s inception in 1968, has raised more than $500 million for sick children.

Over the years, Telethon has attracted international guests such Sir Cliff Richard, Harry Connick Jr, Whitney Houston, Michael Jackson, Sammy Davis Jr, Stevie Wonder and Tina Turner.

And because it’s unscripted… Telethon can be a hotbed of candid moments, heaps of us have memories of staying up late where there was a high chance that things would get spicy.

Ahead of this weekend’s Telethon, Clairsy & Lisa took your calls on your fave memories of the iconic event, hit PLAY to listen in:

All pics from Lost Telethon

Agro, Jeff Newman, Daryl Braithwaite and Adriana Xenides on the Telethon panel in 1990 (Lost Telethon via Facebook)

Pat McDonald (Number 96, Sons and Daughters) takes a rather big donation in the Telethon Phone Room in 1975. Yes, that’s a ciggie in her hand. (Lost Telethon via Facebook)

Actress Alix Bidstrup from All Saints next to Agro on the panel at Telethon in 2008.

Fat Cat and Friends in front of the 1984 Telethon Money Wall. (Lost Telethon via Facebook)

Rick Ardon a victim of the Phantom Flan Flinger on the 1989 Telethon panel (Lost Telethon via Facebook)

John Farnham, Jeff Newman and 1989 Telethon Child, Holly Clarke (Lost Telethon via Facebook)

Carrie Fisher on the panel in 2010.

Def Leppard on stage during Telethon in 2011.

Telethon kicks off on Channel 7 this weekend, October 21 & 22.