episode question

Hallo to all from Germany

first sorry for bad english...

many years ago i see here this series in TV and one Episope stood in my mind all the years.
I only remember the End ..
wedding anniversary ... the Man impotence ?? and for a surprise he blindfold his wife and bring her to the next room. There he bind her to a frame and a second man give her what her husband can not ... and she thinks her husband loved her

can anyone remember this Episode ?