This has happened to me a couple of times now. I have plenty of space for recordings. I set the Tivo to record, I see the red light recording light on, but when I go to watch the show later, it isn't listed!!!! This was a 2 hour show. Also sometimes I check the recording play back and some times the show is just a gray blank screen. This seems to happen quite frequently on the HD channels. Can anyone help me and give suggestions? Thank you!!!