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                                                                    EXHIBIT 12.4

                                 VIDEOTRON LTEE
                         FINANCIAL STATEMENTS SCHEDULE
                 SCHEDULE OF VALUATION AND QUALIFYING ACCOUNTS
                   (AMOUNTS IN THOUSANDS OF CANADIAN DOLLARS)

<Table>
<Caption>
                                                 BALANCE,     CHARGED TO                    BALANCE,
                                                BEGINNING     COSTS AND                      END OF
                                                 OF YEAR      EXPENSE(1)    DEDUCTIONS(2)     YEAR
                                                ----------   ------------   -------------   ---------
                                                                                
Allowance for doubtful 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
    2004......................................     7,220         7,617           8,703         6,134
</Table>

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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.