Well, there’s one singing competition that won’t be back next season. The Sing-Off has been cancelled after three seasons on the NBC.

Hosted by Nick Lachey, this TV series seeks to find the most-talented a capella singing group in America. Judges have included Ben Folds, Shawn Stockman, Nicole Scherzinger, and Sara Bareilles. The judges decide who advances to the finale and the final winners are determined by viewer votes. The champs take home a Sony recording contract and $200,000.

The Sing-Off began in December 2009 as a short-run series with just four episodes. It did reasonably well — averaging a 2.3 rating in the 18-49 demographic with 6.9 million viewers — so the peacock network brought it back for season two.

It returned in December 2010, expanded to five episodes, and the ratings rose 26% — to an average of a 2.9 in the demo with 8.6 million viewers.

Should Sing-Off have been cancelled? No! I loved it! Maybe, it was okay. Yes, I didn't like it. View Results  Loading ...

NBC decided to take another chance and give The Sing-Off a two-hour timeslot on the fall schedule with 11 episodes. That gamble didn’t pay off and the ratings were much lower. By the end of the season, The Sing-Off averaged a 1.5 in the demo with 4.56 million.

On our NBC Ratings Report Card, which measures the relative demo performance of TV shows on the network, The Sing-Off has an “C-” grade. The network has now cancelled the show.

NBC could have brought it back for another limited run, perhaps over the summer or in December but were likely hesitant to flood their schedule with yet another singing/talent competition. America’s Got Talent has been very successful for them over the summer months and NBC plans to run two cycles of The Voice next season. There just wasn’t a place on the schedule for The Sing-Off any longer.

What do you think? Do you think NBC should have kept The Sing-Off, perhaps run it in December? Are you sorry to hear that it’s been cancelled and won’;t be back for a fourth season?