IMO, there is sneaking and there is sneaking. For a kid who grows up without TV/DVDs, watching anything is sneaking. For a kid who grows up with TV, there might also be “sneaking” but the content will be very different. Most kids (and maybe adults too) know when they might be crossing the line but realize that the “lines” are in very different places.
If you are thinking you might need to watch (for whatever reason) my suggestion is to get shows which you may enjoy but forget the TV.