I know its not high brow but I watch Blurays played on the PS3 and Beovision 7

Today we had our power turned off by electric co. when i came home no TV, grrrrr Turned off the whole lot except TV, took out sky card replaced card and rebooted. TV came on with SKY standard start screen then tried to change channel nothing doing. Rebooted TV (twice) and it has WAIT on the top LHS display. Unfortunately cant read what BEO4 display