Neil Best in subscription/Optimum-only Newsday covers the big three as they start their fifth season: For Mets fans of a certain age, Bob Murphy, Ralph Kiner and Lindsey Nelson forever will be the voices of their youths - a trio that reigned on TV and radio for the franchise's first 17 seasons. But SNY's Gary Cohen, Ron Darling and Keith Hernandez are well on their ways to filling the same role for a new generation of fans. Cohen and Hernandez signed new deals after last season, so now all three are under contract to SNY at least through 2013, which would be their eighth season together. "I think it's fantastic for all concerned," said Cohen, who unlike his partners grew up listening to the original broadcasters. (The only surviving member is Kiner, who still contributes to SNY.) "The way the players change, managers change, general managers change, in many cases the one thing that remains stable is the announcers." That theory works only if fans actually like the announcers, and SNY's have received mostly good reviews as they begin their fifth season at 1 p.m. Tuesday when the Mets play the Braves in their exhibition opener. Said Darling: "We all have our strengths and weaknesses, but together, it kind of makes sense." Cohen recalled a similar dynamic among Nelson, Kiner and Murphy, although in that era, they rarely were heard together because they divided TV and radio duties. (Speaking of which, Howie Rose brings a long history of his own with the team to Mets radio.) "Let's call it for what it is," Cohen said. "This really works, and we're all really happy . . . Where are any of us going?" Cohen noted that in addition to the on-air team, SNY has kept the same well-regarded game production leaders in producer Gregg Picker and director Bill Webb. Although no one at SNY seriously worried that Hernandez would leave, he did raise the issue publicly after the 2009 season finale. "It's something that I probably shouldn't have said; it just kind of came out," he said. Now that the deal is done, he is "very thrilled." "We've been together so long, we know our moods and idiosyncrasies, and it's quite a little comfort level," he said. "We know we've got each others' backs." Darling also works for TBS on its national package. Cohen could be in the TBS mix, too, perhaps for a wild-card series. But even more so than Darling and Cohen, Hernandez is irreplaceable, thanks both to his quirky humor and his status as one of the most important players in Mets history. Thus it was a big story when he tutored first baseman Daniel Murphy last month. Might that put him in an awkward position if Murphy messes up while Hernandez is in the booth? "I don't believe it compromises me at all or puts me in a tough position," he said. "There is no reason, if he makes a mistake, physical or mental, that I cannot objectively comment on it." And if the subject of how well Murphy was taught comes up during a game, Hernandez can guess how the conversation will go. "There would be a little comedy," he said. "We'd joke and have fun with it." Bonus material from Keith: Leftover stuff from Keith Hernandez that I didn't get into the newspaper version of my story about SNY's Mets announcers: Hernandez said he gets along well with Gary Cohen and Ron Darling. That's quite an accomplishment after spending many months every spring and summer sitting very close to them in the comically small home-team TV booth at Citi Field: "I would say 99.9 percent of the time [there are no problems]," he said. At worst, someone might say or do something that rubs someone else the wrong way. "And 'rubbing the wrong way,' might be an extreme way to put it," he said. "Sometimes you might be sick or not in the most patient of moods, but we're not spending 24 hours a day together." It helps that every game is unique. "It's not like doing a rock concert and playing the same songs in a different town," he said. Here's Hernandez on the Mets' prospects for 2010: "I always like a team that's come off a bad year and players that have come off a subpar year and have track records, because they'll work hard in that offseason to have a bounce-back year. "The Mets have five guys with the potential to be the Comeback Player of the Year. "I think this team is going to hit and score runs and be fine offensively. But health is important. "To me it all boils down to pitching. If I could have both, I'd take a team like the '69 Mets with great pitching as opposed to an offensive team with mediocre pitching." Hernandez on the challenge of working meaningless games late last year: "It's much more fun when they win and they're competitive and it's down to the wire, and we had that three of the last four years. When you're playing it out like last year, there's not the intensity and you can be more relaxed. "Guys in the truck would say, 'These are the games now where you have to hold the audience.' But ultimately we're not going to bring the audience. The team is what gets people to sit down on their couches and come to the ballpark." Former Cardinal Hernandez on Mark McGwire and steroids: "I don't think he should be banned from baseball and coaching. If that's what he wants to do he should be doing it, and good for him. "But you know know how I feel about guys who did steroids, and my opinion will never change on it. I feel they knew what they were doing and why they were doing it and it was dishonest. "They put a stain on the record book that will forever be a brown spot on every page. They should never be under consideration for the Hall of Fame."