Renovation reality series House Rules finished in the penthouse after it topped the ratings on Sunday night.
The second season of the Seven Network series was the number one show after 1.988 million people watched Victorian couple Adam Dovile and Lisa Lamond being crowned the winners.
The viewing numbers for the Winner Announced segment of House Rules were up 161,000 on last year's inaugural announcement.
The Grand Final segment of House Rules was the number two show on OzTAM's overnight ratings with 1.730 million watchers.
Seven completed the ratings trifecta when its evening News (1.324 million) was third.
The House Rules finale took its toll on the Nine Network's singing series The Voice Kids which had its lowest ratings this season.
After attracting more than 1.6 million and topping the ratings for the first two episodes, the episode of the The Voice Kids settled fifth with 1.255 million viewers.
Seven not only won the reality show battle but it also won the war on public affairs and Australian made dramas.
Seven's Sunday Night, which featured video of Olympian Oscar Pretorius re-enacting the shooting death of model Reeva Steencamp, was fourth with 1.289 million viewers compared to Nine's 60 Minutes which was seventh (999,000).
Locally made Seven drama A Place To Call Home landed in eighth spot with 957,000 watchers and Nine's equivalent House Husbands (754,000) was 11th.
Network Ten's highest ranked show was MasterChef which was ninth with an audience of 909,000.
Most watched shows on Sunday
1. House Rules Winner Announced (Seven) - 1.988 million
2. House Rules Grand Final (Seven) - 1.730 million
3. Seven News (Seven) - 1.324 million
4. Sunday Night (Seven) - 1.289 million
5. The Voice Kids (Nine) - 1.255 million
6. Nine News (Nine) - 1.255 million
7. 60 Minutes (Nine) - 999,000
8. A Place To Call Home (Seven) - 957,000
9. MasterChef (Ten) - 909,000
10. Grand Designs (ABC1) - 779,000
11. House Husbands (Nine) - 754,000
- Source OzTAM