Hi Yehbutnotyeh
Very sorry about the late reply, I must have missed this somehow - my sincere apologies!
We offer BT Sport as a mobile app based on personal use as an inclusive benefit at no charge to our BT Business broadband and EE mobile customers on selected plans. This service is chargeable for all other customers. We currently haven’t considered the casting option as we already have a large screen option for commercial use, this is the BT Sport you routinely see in pubs and other public venues. Thank you for your feedback, at BT we are constantly looking for ways to improve our products, we will definitely take your issues into consideration.
Regards
Ryan