my ferguson widesceen?

my ferguson widescreen tv ftv28fw1 blanked out on me the other night while i was watching something i have had this tv for around 6 years it blanked out on me leaving me with only the red light on so i have tried unpluggin it and switching it back on for when i try to put a channel on the red light only changes to green for a second and then resorts back to red so im still left with no sound or picture any ideas wots went wrong?