Thanks for the questions! Since you have DirecTV and you have said that your model is 24-100, I would recommend selecting model number H24 under DirecTV.
If you have any other questions, feel free to respond or give us a call at 1-877-467-5464. We are open seven days a week, from 10:00 am to 10:00 pm eastern time.
The Sling Moderaton Team