'This is an incredible opportunity to travel around the world on the adventure of a lifetime with your favourite person!' the ad began.
Their advice? 'Don't edit the video, script or rehearse - just hit record and upload.'
After taking out last night's season finale, Tim and Rod called the show 'the greatest adventure of our lives' and 'hands down the best thing we’ve ever done.'
'Being apart of this race has changed our lives and we’re so happy and grateful to have had the opportunity to be apart of it. Our aim going into the Amazing Race was to hopefully help inspire people to be themselves and to love whoever they want to love.'
The newly-engaged couple added, 'We’re over the moon with happiness and still can’t believe it.'