Network Ten's gamble to launch its new reality show Everybody Dance Now (EDN) on the final night of Olympic Games competition fell flat on its face.
The dance battle format built around US pop stars Kelly Rowland and Jason Derulo and hosted by Sarah Murdoch was 13th overall in the ratings for Sunday night.
It attracted just 572,000 viewers on advertised times.
Ten released a revised figure of 598,000 on Monday morning based on actual screening times after Everybody Dance Now started late because MasterChef All Stars ran over time.
But even the revised figure could not save the show when compared with the programs it directly competed against in the 7.30pm timeslot.
The ABC's Grand Designs Revisited pulled 944,000 viewers to be sixth overall.
The Seven Network's fantasy drama Once Upon A Time attracted 883,000 viewers to be seventh.
Ten concedes the Olympics ate heavily into EDN's viewing audience but the network is not too concerned.
"EDN was clearly impacted by the final night of Olympics coverage, but we are very happy with the look, feel and tone of EDN. You cannot judge a program by one night's ratings," Ten said in a statement.
Everybody Dance Now is the first of three reality shows Ten is launching in August and the network will be hoping for a better result with it's two other new programs.
Don't Tell the Bride, hosted by former Home and Away actress Kate Ritchie, starts August 21.
A day later, I Will Survive, hosted by Packed to the Rafters star Hugh Sheridan, starts.
Overall Nine News won the Sunday ratings with 1.685 million viewers followed by Seven News (1.460 million) and Nine's early evening Olympic Games coverage (1.457 million).
Sunday Night was fourth (1.420 million) and Nine's evening Olympic coverage was fifth (1.307 million).
ABC News (784,000) was eighth, while Dream Build, with 782,000 viewers, gave the ABC three top 10 shows.
Ten's MasterChef All Stars rounded out the top 10 with 779,000 viewers.
Top rating shows on Sunday night
1. Nine News (Nine) - 1.685 million
2. Seven News (Seven) - 1.460 million
3. London Live - early evening (Nine) - 1.457 million
4. Sunday Night (Seven) - 1.420 million
5. London Live - evening (Nine) - 1.307 million
6. Grand Designs Revisited (ABC) - 944,000
7. Once Upon A Time (Seven) - 883,000
8. ABC News (ABC) - 784,000
9. Dream Build (ABC) - 782,000
10. MasterChef All Stars (Ten) - 779,000