If you have Verizon - NFL Mobile. It's now free with NFL Redzone available for another $2 a month. I used that with my iphone and apple TV to mirror (jailbreak required) and streamed all games and redzone without an issue for the last 2 years.
http://www.verizon.com/...with-all-price-plans
http://www.verizon.com/...with-all-price-plans