Our Bounder comes with 4 if all the options are included. We tried to get a Bounder with two, but we couldn't find any on a lot. So we made do with three - two inside, one outside. We have never used the outside TV and call it our 'spare' in case one of the others breaks. It took a while to find one without the third tv inside - over the windshield. It seems to us completely unnecessary and a huge waste of space. Why would you ever watch that one, when there is a larger one at eye level 10 feet away??
BTW - our 33C has a sofa large enough to nap on...