The TCV tokamak (R = 0.88 m, a<0.25 m, BT<1.54 T) is equippedwith six 0.5 MW gyrotron sources operating at 82.7 GHz for secondharmonic X mode ECH. By distributing the ECCD current sources overthe discharge cross section, fully driven stationary plasmas withIp = 210 kA, ne0 = 2 × 1019m-3, Te0 ≈ 4 keV, were obtained for the fulldischarge duration of 2 s. Highly peaked electron temperature profileswith Te0 up to 12 keV were obtained in central counter-current drivescenarios with off-axis ECH. Absorption measurements using a 118 GHzgyrotron have demonstrated the importance of suprathermal electronsfor third harmonic absorption. A coupled heat-particle transportphenomenon known as `density pumpout', which leads to the expulsion ofparticles from the plasma core, has been linked to the presence of m = 1modes, suggesting that it is due to the existence of locally trappedparticles associated with the loss of axisymmetry. Highly elongateddischarges have been developed with ohmic heating (κ<2.8) and off-axisECH. The latter exhibit considerably improved vertical stability dueto current profile broadening. A `gateway' for ELMy H modes has beendiscovered, which allows stationary ohmic ELMy H mode operation over a wide range of elongation, triangularity and density. Divertordetachment experiments suggest the existence of recombination pathwaysother than three body or radiative processes.