<Page> EXHIBIT 12.4 VIDEOTRON LTEE FINANCIAL STATEMENTS SCHEDULE SCHEDULE OF VALUATION AND QUALIFYING ACCOUNTS (AMOUNTS IN THOUSANDS OF CANADIAN DOLLARS) <Table> <Caption> BALANCE, BEGINNING OF CHARGED TO COSTS BALANCE, YEAR AND EXPENSES(1) DEDUCTIONS(2) END OF YEAR ------------ ---------------- ------------- ----------- Allowance for doubful accounts receivable Year ended December 31: 2001......................................... $ 7,522 $10,160 $ 9,341 $ 8,341 2002......................................... 8,341 11,084 8,210 11,215 2003......................................... 11,215 10,542 14,537 7,220 </Table> - --------- Notes: (1) Represents increase in allowance for doubtful accounts receivable charged to expenses. (2) Represents the accounts receivable written-off against the allowance for doubtful accounts receivable.