I have a 15 year old RCA , Home Theater television, model G27750WK which has never given me a minutes trouble. A few weeks ago the screen started to twitch at times. Last night the screen went black except for a vertical colored stripe down the middle of the screen . Has my picture tube gone out? I still have sound. If it is the picture tube, would I be better off buying a new TV? How much does a picture tube cost? (The serial # is 336350272)
