The peacock network gave three shows some very good news on Friday. NBC ordered nine additional episodes each of Community, Parks and Recreation, and Mercy.

None of the three shows have been performing particularly well but the network is committed, at least for now, to sticking with them. If the ratings for any of them become much worse, NBC could still reduce the season orders. All three are co-productions of NBC’s corporate sister, Universal Media Studios, so that seems unlikely to happen.

Things don’t look quite as rosy though for some of the network’s other programs. Heroes was expected to be one of the weakest players this season but, because of the rest of NBC’s schedule, it’s one of the stronger performers in the 18-49 demographic. As unlikely as it may seem, Heroes could live to see a fifth season.

Law & Order is performing poorly this season, likely in part to the fact that it’s now airing much earlier than it has for 19 seasons. The show’s also running on Friday nights but viewership and expectations are lower there. Creator Dick Wolf made financial concessions to ensure that the show was renewed last Spring so that it could tie with Gunsmoke for longest-running primetime drama (for number of seasons anyway) and will likely push to keep it going. With more than 470 episodes, there are plenty of episodes for syndication but it seems likely that Law & Order will be renewed again.

Trauma is in the most immediate danger and could be pulled at any time. Its ratings are currently stuck at 5.52 million viewers and a poor 1.8/4 rating/share in the 18-49 demographic. Last week, the show ranked in fourth place in both viewers and the demo, and lost a large percentage of the Heroes 18-49 lead-in. Even if NBC airs all 13 of the show’s episodes, it’s inconceivable that they’ll order any more.

What do you think? Do Community, Parks and Recreation, and Mercy deserve more episodes? Should Heroes and Law & Order get another season? Should Trauma be cancelled?