By setting up an oratory in our home we show Jesus Who is the center and King of our home. It may be a nice idea, being the month of the Sacred Heart of Jesus, to formally consecrate one's oratory by enthroning an image of the Sacred Heart in the room. Imagine the graces drawn down on one's family by dedicating one room or part of it to God. What a witness to those who visit our homes. What a reminder to put God and prayer first in our family life.
Many houses have a TV room.
Before entering the monastery I set up an oratory in the apartment I was renting. It so happened that I only had my bedroom to use as the oratory. So I placed a picture of the Holy Face of Jesus on my dresser along with other holy pictures. I even managed to buy vigil candles from my local parish to put on my dresser. What a reminder it was for me, after spending a hard day at work, to come into my room and just rest before the peaceful gaze of Jesus.