Strike Force Five assemble! Monday night’s episode of The Late Show saw the late-night Voltron come together once more with host Stephen Colbert joined by The Tonight Show ‘s Jimmy Fallon , Jimmy Kimmel Live! ‘s Jimmy Kimmel, Late Night ‘s Seth Meyers and Last Week Tonight ‘s John Oliver . Introducing “four of his best television friends,” Colbert welcomed his late-night rivals/peers/friends/contemporaries/well-wishers with a group hug. The quintet recalled the last time they all spent time together, for Colbert’s birthday two years ago. Colbert remarked that the five of them together was “dangerous” and that it meant The Daily Show ‘s Jon Stewart was now the “designated survivor.” As the hosts bantered — Kimmel quipped that he understood why Colbert’s show lost “$40 million dollars” as there’s “too many people in the band” — they settled into an interesting existential discussion about late night.…