Last year the big free-to-air ratings battle was between The Block NZ and MKR NZ. This year it’s X-Factor NZ and Our First Home. And, early on in the piece, it’s a tight tussle, with the first episode of the second season of MediaWorks’ talent show charting slightly bigger ratings than TVNZ’s new reno-reality show. PLUS: TVNZ’s Our First Home game extends the show to the second screen.