Broadway revved its engines in advance of the holiday bonanza, with B.O. at nearly every show logging an upswing in Week 28 (Dec. 5-11).One of the largest B.O. bumps came at “How to Succeed in Business Without Really Trying” ($1,037,547), which rose by about $135,000 (or 15%) to rejoin the millionaires’ club. The show likely benefited in part from biz of theatergoers looking to catch star Daniel Radcliffe before he exits the production in early January, Seven productions topped the $1 million mark, including “Hugh Jackman, Back on Broadway” ($1,545,033), which once against broke the house record at the Broadhurst. The overall Rialto cume rose $1.2 million to $25 million for the 33 shows running. Attendance was up by about 13,000 to 258,572, which came in at 79% of Rialto capacity. The 24 musicals grossed $20,743,113 for 83% of the Broadway total, with attendance of 207,996 and an average paid admission of $99.73. The nine plays grossed $4,261,508 for 17% of the Broadway total, with attendance of 50,576 and an average paid admission of $84.26.