Although most of us have become accustomed to occasionally being approached by Solicitors when entering or leaving a store (Girl Scouts, charities, etc.), I find it particularly objectionable when I'm bothered after I've entered the store, and am in the process of shopping. I've also noticed other Shopper's reactions to the DirectTV sales people interrupting them, and it's never been positive.
It would be a different matter if they were stationed within a designated area, and shoppers that are interested may go to them.
However, this practice of the Sales People roaming about the store, and bothering shoppers has gone too far. This is a deal-breaker, and they have officially lost my business.