The Nine Network may have won Wednesday night, but it was by the shortest possible margin with its own shows.
The ABC's comedy line-up of Spicks and Specks (1.5 million viewers) and The Chaser's War on Everything (1.47 million viewers) performed impressively again.
They joined Seven News (1.58 million) and Today Tonight (1.5) to form the night's top four programs.
With Ten's medical drama House (1.35 million viewers) in fifth place, it took McLeod's Daughters (1.28 million) in sixth place and the Nine News (1.26 million) in seventh, to get the network into the night's top 10.
Seven escaped serious damage after moving its supernatural drama Heroes to Thursday night and still managed a 26.7 per cent share behind Nine's 26.8 per cent.
The ABC earned an impressive 20.8 per cent share with The New Inventors also in the top 10 for the night with 1.22 million viewers watching its water-saving special. The low-key show for Australian innovators rated higher than big budget American dramas Prison Break on Seven and Medium on Ten.
Ten claimed a win for the night with viewers aged 18 to 49 years with a share of 37.2 per cent ahead of Seven with 35.8 and Nine with 27 per cent.