'Naked and Afraid' Your Bathtub ... Is My Toilet!

EXCLUSIVE

The contestants on "Naked and Afraid" don't have the basic luxuries of life ... like a separate bathtub and toilet -- so necessity being the mother of invention ... they've combined both.

The new season of the heavily-blurred Discovery Channel show premieres Sunday at 9 PM EDT... and we got hold  of a clip showcasing the delicate balance between the need to bathe and the need to pee.

The show is fun and all, but seriously ... who puts themselves through this crap?