Its chances for a fifth-season pickup may be murkier than a mud puddle, but this much is crystal clear: NBC’s Chuck proved a decisive winner of TVLine.com’s first annual ‘Renew Our Show!’ Bracket Tournament, defeating fellow finalist Fringe by a margin of 68.7% to 31.3%.

Over the course of the last three weeks, Chuck also vanquished such cult favorites as Human Target, Lie to Me, and Parenthood in our single-elimination competition for 16 at-risk series hoping to score slots on the 2011-2012 primetime calendar.

It probably didn’t hurt Chuck that its final opponent, Fringe, was picked up for a fourth season on Friday, just days before our last round of voting began. Fox’s smart decision freed up folks who were feeling equal love for both on-the-bubble shows. “Chuck and Fringe both deserve to be renewed, but Fringe has already gotten its pickup. Chuck is in more immediate danger, and I just don’t think TV can afford to lose this show,” wrote TVLine.com reader Aiden, echoing a sentiment expressed by many of you in our comments section.

Now that our tournament has come to an end, click here to see the entire bracket (then click again on the image for a zoomed-in view). And if you’re losing sleep about the status of anything currently on your DVR “series-recording” lineup, don’t miss our regularly updated Renewal Scorecard feature.

Thanks again for voting, and stay tuned to TVLine.com, as we’re planning another bracket extravaganza for the month of April. To get alerted to that tournament — and to help potentially build the bracket — follow me on Twitter @MichaelSlezakTV.