I haven't really noticed how many it shows in the custom folders. I just like that I can separate my shows by category and keep them all down to 6 folders:
daytime tv-soaps, The view,Price is right.
home decore tv- my wife has about 25recordings in this one and still recording.
news tv-Good Morning America, Morning Joe, Local news, World news tonight.
primetime tv- all my current network shows .
late night tv- Saturday night live, The Tonight show,David Letterman.
Films- movies I will send to my external hard drive for storage.
It makes my main dvr so much easier to read and what ever I 'm in the mood for, I can go to that folder and find a show.