Haven’t gotten enough of a Bachelor fix this week yet? Yeah, we didn’t think so. Jesse Csinscak, whom Bachelorette No. 4, Deanna Pappas, gave her final rose to (and then, abruptly took it back), will be making an appearance on Fox’s America’s Most Wanted Saturday night at 8 p.m. Eastern.

The reality star was called upon by the show’s host, John Walsh, to help bring light to the murder of snowboarder Benjamin Bradley. “He was trekking to Jackson Hole, and he never made there,” explains Csincsak, who’s a pro snowboarder. “They found his body face down in the desert. A couple of months later they found his backpack. The one thing they didn’t find was his $1,200 Never Summer splitboard, which we think could be the key to the murder.” According to Csincsak, his expertise on the slopes is what made him the perfect person to work with Walsh on the case. “Basically, informing them that every snowboard has a VIN number and explaining to them how a splitboard works,” he says. “There are only 128 of those types of boards in the world. So if this board was taken from the guy and then put on eBay and sold, five million people are going to see this episode and somebody might go, ‘Well that looks a lot like the splitboard I bought on eBay’ and call in. That could be the key to solving this murder.”

Besides offering crime-fighting tips, Csincsak also had a few tips to give to Melissa Rycroft, the Bachelor contestant scorned by Jason Mesnick, earlier this week: “I’m a big fan of taking the high road and never really saying anything bad about anybody. That would be my advice to her: to keep her chin high and know…that it’s all right.” Still, the ski bum isn’t taking sides — Mesnick has been a close friend of his ever since they competed on The Bachelorette for Pappas’ heart. “I gave Jason a call [Monday night], just left him a voicemail. I’m sure he’s getting hundreds,” he says. “You go on that show to fall in love. [So] as long as he’s in love is what matters. On every single one of those shows, somebody always gets their heart broken. And it’s kind of casualties of love — love hurts. So it’s a bummer Melissa’s heart got broken. But at the same time I’m really happy for Jason and Molly and Ty. I’m really excited to go out and have pizza, beer, and wings with those guys and hang out.”

When George Clooney left ER in 1999, executive producer John Wells began to conceive the series finale of his NBC drama. Okay, maybe he was a tad premature, but he realized that it was quite possible that all of ER’s original cast members would eventually jump ship (as they did) and he wanted to be prepared. And he insists that his plans for the two-hour finale on April 2 at 9 p.m. (preceded by a one-hour retrospective) haven’t changed much over the past decade. “I really wanted to say to the audience, ‘This place is still here, and if you took the wrong off-ramp in Chicago, you’d end up in front of the hospital where these people have always worked,’” says Wells, who penned the final episode, which is currently shooting in Los Angeles.

Actually, the long good-bye to County General has been going on since November: Early cast members Noah Wyle (Dr. Carter), Laura Innes (Dr. Weaver), and Anthony Edwards (Dr. Greene) have already guest-starred. And Clooney — whose return as Dr. Doug Ross is one of the worst-kept secrets in TV — will be joined by costars Julianna Margulies (Nurse Hathaway) and Eriq La Salle (Dr. Benton) for much-anticipated cameo appearances throughout March sweeps. Wells won’t say exactly when we’ll see them (nor will NBC confirm reports that Clooney will appear March 12), but he does suggest that fans set their TiVos ASAP. “You should not expect them all to be in the finale,” warns Wells. “We’ve spread them out over the season. I didn’t want to do something like somebody dies, or there is a celebration, or the hospital closes, so that’s why everybody comes back. I wanted it to be natural.” He’ll confirm one star for the finale: Wyle, the one original cast member who has appeared in the most episodes of ER.

For more about ER – including how it almost got pink-slipped by NBC before it went on the air in 1994 — check out the latest issue of EW.

More ‘ER’:

George Clooney will appear on ‘ER’…but when?

‘Gilmore’ girl rushed to ‘ER’!

Ausiello Files ‘ER’ scoops

The Seinfeld cast is making another must-see appearance. EW has learned exclusively that the four stars of NBC’s long-running comedy — Jerry Seinfeld, Julia Louis-Dreyfus, Jason Alexander, and Michael Richards — will be featured in a multiple-episode story arc on HBO’s Curb Your Enthusiasm this fall. The cameos will mark the first time that all four actors have appeared together in a scripted TV show since Seinfeld went off the air nearly 11 years ago. No date has been set for this event, or for Curb’s seventh season, which will run for 10 weeks. Curb, of course, was created by and stars Larry David, the cocreator of Seinfeld.

The episodes, which are currently shooting in Los Angeles, appear to represent a continuation of David’s relationship with the Seinfeld stars. As Curb fans know, Seinfeld, Louis-Dreyfus, and Alexander have made individual appearances on the award-winning series over the years.

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Watchmen star and Oscar nominee Jackie Earle Haley (Little Children) is now setting his sights on the small screen. EW has learned that he’ll play a supporting role in Human Target, a Fox pilot in contention for the fall that’s based on the popular DC Comics franchise. Chi McBride (Pushing Daisies) is also joining the cast of the pilot that stars Mark Valley (Fringe) and is exec produced by McG. The pilot focuses on a character named Christopher Chance (Valley), a private detective who changes his identity each week to save lives. (Reporting by Michael Ausiello)