A:AnswerHi! You just need for your TV to be connected to a network and you can download the app for free (please remember that fees may apply when accessing the app but for this, we recommend you to contact Sling directly).
Viri E.
Insignia Support.
https://www.insigniaproducts.com/contact-us
A:AnswerHi! Yes, this TV has a Bluetooth feature to pair the remote control as well as other devices like your cell phone (to use as a remote). This feature is not intended for wireless connections for soundbar or other devices, since it can cause sound delay.
Viri E.
Insignia Support.
https://www.insigniaproducts.com/contact-us
A:AnswerYou can download the ESPN app on this TV. For more information, please visit https://help.espnplus.com/hc/en-us/articles/360030561612-Fire-TV-Fire-Tablet