All this ensures good image quality and long life. 1.5 meter enough to go below your TV (device) to the TV, 1 m. is often too just after the furniture used.
Do not expect a miracle if you transfer the signal between analog (here my TV decoder NC non HD) and your TV or HD recorder (digital to digital remains digital and analog still lacks sharpness seen up close) However it has done its job of transferring the best image of our SCART materials (which have at least the advantage of always allow recording of pay TV, on the contrary it seems the last box HD ...).