Just follow the television's WIFI set-up instructions in its manual, which should be in your Airstream briefcase, and get the WIFI network ID and password from the park?
We just used the Bluetooth on our television today, to listen to the soundtrack of a movie planing on the iPad . . . fun . . .
Your dealer should be able to help also, or the Airstream 800 number help line?
PS -- The "Electronics and Connectivity" forum may also be of help:
TV sub-forum: https://www.airforums.com/forums/f450/