1. A television receiver for use in an echo cancellation system in which a television signal comprising a plurality of frames and a ghost cancellation reference signal is transmitted over a transmission path having a distortion characteristic which adds first and second echo components to said television signal, said receiver comprising: a) means for receiving said television signal and for extracting therefrom said ghost cancellation reference signal; b) means for periodically analyzing said ghost cancellation reference signal and for calculating a plurality of filter coefficients defining the inverse distortion characteristic of said transmission path and a plurality of control signals related to said first and second echo components; and c) a plurality of filter sections which are configured, in response to said control signals, into a first filter suitable for substantially cancelling said first echo component and a second filter suitable for substantially cancelling said second echo component.