Usually there are, but you have to remember that these are mostly "scene" rips, and scene people have their own private sites that you and I normally don't have access to, and they typically don't give a fuck about the torrent community, so some other shlub has to actually upload it to the torrent site. Typically that is the same person with quick scene access every time, but not always, and some shows seem to get neglected. I've done that a few times when the only two reality shows I ever watch (America's Got Talent and So You Think You Can Dance) haven't shown up on B-T-N for a day or two. I find it, of all places, on a public site, with a group name attached to it, and then follow the directions and upload it to B-T-N.
There are some fairly specific steps you need to follow, but they have a nice automated page that helps. Just make sure you research whether the group name is a "scene" group or not (there is a page somewhere that you can look at I believe, and for heaven's sake don't change the file name in any way, leave their group name on it); that makes a big difference because not only do they stress getting it right, but people get pissy because their auto-download settings are often based on that. Mine is only set to download scene releases, for example.
Short version, if a show you like doesn't have an episode up yet, if you find it somewhere else, feel free to upload it and get free snatch. No ripping required.