I'm pretty behind, too. I keep hoping that some of the shows I haven't started watching yet will get canceled and help me out. Terra Nova, Pan Am, and A Gifted Man are all sitting on my tivo, full seasons... I haven't started watching Grimm either but there's only been a couple of those. I use "how many suggestions do I have recorded" to judge the amount of space that I have left, and I was down to only TWO on each last night! And one of those was two 30 minute shows... not sure about the other. As a gauge of size, they both have 500 GB drives and have around 60-70 shows in now playing that aren't suggestions (one of them has a LOT more half hour shows than the other, but it also has more 2 hour shows on it than the other as well... I pad CSI Miami by 1 hour to account for football, which forces me to keep current on those for space reasons, and I had 2 of those on there, as well as the Terra Nova pilot).