The method for studying semileptonic neutral kaon decays at CPLEAR is
presented together with a preliminary data analysis. For the first tim
e a direct determination of T violation is shown to be possible and lo
w statistics results are given. From the same data the K(L)-K(S) mass
difference, DELTAm, the CP violation parameter of K(S), epsilon(S), an
d the parameter x testing the DELTAS = DELTAQ rule are also obtained.