Houston not getting the Saints game?!?!?
In general, when the home market team plays a sold out game (Texans hosting Broncos in the early slot in this case), the NFL prohibits the other network (in this case Fox in the early slot) from showing another game on TV (in this case Saints-Carolina also at 12CST/1EST). I don't know if this also applies to Sunday Ticket.
While there are some exceptions, such as when CBS has no late games during the US Open weekend(s), I'm guessing they don't apply here.
That's why, if you can't live in NOLA, you're better off living in a market with no home team.