This morning when I turned my TV on with my TiVo remote I just got a black screen. I heard the tv turn on but there was nothing on my screen and no audio. I unhooked the TiVo and the tv works fine so its not the tv- I hooked TiVo back up and nothing. The green light on the front of the TiVo is on and I hear something running in the TiVo box. I can't get to TiVo central or anything. I have an older box that was bought in 2004- don't know what series or anything- no HD or anything just regular TiVo 40 hour box. Any thoughts on what happened- is it dead?