Yes, you can put a TV under a mini split. There are a few things to keep in mind, though. First, the mini split will need to be mounted high enough on the wall so that the TV will fit underneath it. Second, make sure that there is enough clearance between the bottom of the mini split and the top of the TV so that air can circulate properly. Third, if you have young children or pets, you may want to consider mounting the mini split higher up on the wall to prevent them from knocking it over.