It’s been a fourth quarter full of changes at iHeartMedia, with a much-publicized reduction-in-force initiative all but eliminating the local news department at its KFI Radio in Los Angeles and resulting in the termination of many on-air and behind-the-scenes staffers. Now, the company helmed by CEO Bob Pittman and COO/CFO Rich Bressler seeks more time to repay its lenders by proposing to push out its repayment dates by at least three years — and by doing so at a noticeably higher interest rate.