The games can be unpredictable, and usually the best ones from that round aren't shown on FTA in favour of an unfortunately dull or one-sided encounter. Maybe it's because I'm sick of the same teams getting the exposure, or the way you can pretty much know exactly what the commentators are going to say about the game and the players as soon as the schedule is announced, but I would love to see some different teams on FTA besides the usual 4 or 5.
Of course, there is the standard of the game to worry about, and if it's a dud then it might not be a great idea in hindsight, but it would bring a bit of freshness to hear the commentary on, for example, a Todd Carney or a John Sutton instead of a Brett Finch or a Braith Anasta. When they put the FOX replays on in the bar at uni and it's a game like Rabbitohs vs. Storm I'm always more interested because it's a break from the usual, sometimes you'd swear other teams didn't exist in the NRL as far as Channel 9 is/are concerned. I don't care if they aren't the best players or biggest drawcards, it just broadens the landscape and makes the viewing experience more worthwhile IMO.
Plus, I'm sick of hearing about Gasnier ;-)