The invention relates to a method and an apparatus for bidirectional transmission of electronic data in a television data cable network having segments which each comprise two or more user interfaces, with each of the segments being connected via a cable connection to a feed point in the television data cable network. In the method, electronic downlink remote data is transmitted in a downlink radio-frequency band in an upper cut-off area of a transmission bandwidth of the cable connection, and electronic uplink remote data is transmitted in an uplink radio-frequency band in the upper cut-off area of the transmission bandwidth of the cable connection.