Responding to barrage of e-mails, phone calls and media coverage, SHOWTIME will replay the “Shobox: The New Generation” card of Arnaoutis vs. Gallardo and the dramatic Elder vs. Burton. The excellent news for boxing fans is that the “ShoBox’’ doubleheader can be seen three times in the next three days. The first replay will air tomorrow at 7:30 p.m. ET/PT on SHOWTIME, followed by an airing Wednesday on SHO EXTREME at 11:35 ET/PT and then on Thursday evening on SHO TOO at 11 ET/PT (all times delayed on the West Coast). In an incredible, crowd-pleasing battle of non-stop action from start to finish, Elder (22-1, 14 KOs) snatched victory from the jaws of defeat by mounting a furious rally to knock out Courtney Burton (21-3, 11 KOs) with 50 seconds remaining in the twelfth round to retain his North American Boxing Federation (NABO) 135-pound title. Elder was trailing on two of the three judges’ scorecards entering the final stanza. With both eyes swollen nearly shut and bleeding heavily from a cut on his right eyebrow and staggering badly, Elder appeared out on his feet earlier in the 12th. But he managed to recover and unleash a barrage of punches that floored Burton. The thrilling slugfest was stopped at 2:10 after Burton went down a second time. Undefeated Mike Arnaoutis upped his record to 12-0-2 (6 KOs) with an impressive third-round knockout over Juaquin Gallardo. Arnaoutis decked Gallardo (16-3-1, 5 KOs) once in the second and once in the third in the action-packed slugfest.