Tivo suggestions has started acting oddly for me...
Normally, it would keep the disk at near 100% full. Now... it doesn't. It does record 2-3 shows a day. But not many. There are clearly lots of thumbs up shows that have not played recently that it can record.
Just as an example... see the attachment. (I can be a little bit of a graphing nut...) I graph several things on tivo stats. If you look at the graph you'll see where in February I tossed all the tivo suggestions. (I replaced a failing hard drive). The suggestions refilled over about a month. If you look at somewhere around June, suggestions suddenly slow down. There is lots of free, unused space and they don't record.
This slow down coincides with me adding cable. I previously was only recording off of an antenna with about 6 channels. Now I have cable and antenna and a ton of channels... but just a trickle on the suggestions.