In another low-key email sent out to his subscribers Saturday, comic Louis C.K. announced a record-setting fourth show at Madison Square Garden for Tuesday, January 27. He has already become the first comedian to sell out the cavernous venue three times in a month for the same tour. Now he’ll (likely) extend that record to four. As with the first three shows, tickets are $25, $45, or $65 with no additional fees. “I mean, if you keep buying the tickets, I have to keep doing the shows,” he writes in the email. So, maybe five?