I have an app on my smartphone called Peel Remote. Basically a universal remote that can be programmed to a given tv in about two seconds. While I don’t fly much anymore, I have used it to commandeer tvs in the waiting room at the hospital, and at several sports bars. Works great, and can be a source of entertainment as well. The security guard at the hospital was in charge of the remote for the tv, and he was a CNN watcher. I changed the channel to FOX and watched him react to seeing “the enemy” on “his” tv. We went back and forth a couple of times until I cracked up laughing. When he found out what was going on, he was laughing too!